FractionWorksheets.org
Adding Fractions
1
+
1
=
1
2
2
1
+
1
=
5
2
3
6
1
+
1
=
3
2
4
4
1
+
1
=
7
2
5
10
1
+
1
=
2
2
6
3
1
+
2
=
1
1
2
3
6
1
+
2
=
1
2
4
1
+
2
=
9
2
5
10
1
+
2
=
5
2
6
6
1
+
3
=
1
1
2
4
4
1
+
3
=
1
1
2
5
10
1
+
3
=
1
2
6
1
+
4
=
1
3
2
5
10
1
+
4
=
1
1
2
6
6
1
+
5
=
1
1
2
6
3
1
+
1
=
5
3
2
6
1
+
1
=
2
3
3
3
1
+
1
=
7
3
4
12
1
+
1
=
8
3
5
15
1
+
1
=
1
3
6
2
1
+
2
=
1
3
3
1
+
2
=
5
3
4
6
1
+
2
=
11
3
5
15
1
+
2
=
2
3
6
3
1
+
3
=
1
1
3
4
12
1
+
3
=
14
3
5
15
1
+
3
=
5
3
6
6
1
+
4
=
1
2
3
5
15
1
+
4
=
1
3
6
1
+
5
=
1
1
3
6
6
1
+
1
=
3
4
2
4
1
+
1
=
7
4
3
12
1
+
1
=
1
4
4
2
1
+
1
=
9
4
5
20
1
+
1
=
5
4
6
12
1
+
2
=
11
4
3
12
1
+
2
=
3
4
4
4
1
+
2
=
13
4
5
20
1
+
2
=
7
4
6
12
1
+
3
=
1
4
4
1
+
3
=
17
4
5
20
1
+
3
=
3
4
6
4
1
+
4
=
1
1
4
5
20
1
+
4
=
11
4
6
12
1
+
5
=
1
1
4
6
12
1
+
1
=
7
5
2
10
1
+
1
=
8
5
3
15
1
+
1
=
9
5
4
20
1
+
1
=
2
5
5
5
1
+
1
=
11
5
6
30
1
+
2
=
13
5
3
15
1
+
2
=
7
5
4
10
1
+
2
=
3
5
5
5
1
+
2
=
8
5
6
15
1
+
3
=
19
5
4
20
1
+
3
=
4
5
5
5
1
+
3
=
7
5
6
10
1
+
4
=
1
5
5
1
+
4
=
13
5
6
15
1
+
5
=
1
1
5
6
30
1
+
1
=
2
6
2
3
1
+
1
=
1
6
3
2
1
+
1
=
5
6
4
12
1
+
1
=
11
6
5
30
1
+
1
=
1
6
6
3
1
+
2
=
5
6
3
6
1
+
2
=
2
6
4
3
1
+
2
=
17
6
5
30
1
+
2
=
1
6
6
2
1
+
3
=
11
6
4
12
1
+
3
=
23
6
5
30
1
+
3
=
2
6
6
3
1
+
4
=
29
6
5
30
1
+
4
=
5
6
6
6
1
+
5
=
1
6
6
2
+
1
=
1
1
3
2
6
2
+
1
=
1
3
3
2
+
1
=
11
3
4
12
2
+
1
=
13
3
5
15
2
+
1
=
5
3
6
6
2
+
2
=
1
1
3
3
3
2
+
2
=
1
1
3
4
6
2
+
2
=
1
1
3
5
15
2
+
2
=
1
3
6
2
+
3
=
1
5
3
4
12
2
+
3
=
1
4
3
5
15
2
+
3
=
1
1
3
6
6
2
+
4
=
1
7
3
5
15
2
+
4
=
1
1
3
6
3
2
+
5
=
1
1
3
6
2
2
+
1
=
1
4
2
2
+
1
=
5
4
3
6
2
+
1
=
3
4
4
4
2
+
1
=
7
4
5
10
2
+
1
=
2
4
6
3
2
+
2
=
1
1
4
3
6
2
+
2
=
1
4
4
2
+
2
=
9
4
5
10
2
+
2
=
5
4
6
6
2
+
3
=
1
1
4
4
4
2
+
3
=
1
1
4
5
10
2
+
3
=
1
4
6
2
+
4
=
1
3
4
5
10
2
+
4
=
1
1
4
6
6
2
+
5
=
1
1
4
6
3
2
+
1
=
9
5
2
10
2
+
1
=
11
5
3
15
2
+
1
=
13
5
4
20
2
+
1
=
3
5
5
5
2
+
1
=
17
5
6
30
2
+
2
=
1
1
5
3
15
2
+
2
=
9
5
4
10
2
+
2
=
4
5
5
5
2
+
2
=
11
5
6
15
2
+
3
=
1
3
5
4
20
2
+
3
=
1
5
5
2
+
3
=
9
5
6
10
2
+
4
=
1
1
5
5
5
2
+
4
=
1
1
5
6
15
2
+
5
=
1
7
5
6
30
2
+
1
=
5
6
2
6
2
+
1
=
2
6
3
3
2
+
1
=
7
6
4
12
2
+
1
=
8
6
5
15
2
+
1
=
1
6
6
2
2
+
2
=
1
6
3
2
+
2
=
5
6
4
6
2
+
2
=
11
6
5
15
2
+
2
=
2
6
6
3
2
+
3
=
1
1
6
4
12
2
+
3
=
14
6
5
15
2
+
3
=
5
6
6
6
2
+
4
=
1
2
6
5
15
2
+
4
=
1
6
6
2
+
5
=
1
1
6
6
6
3
+
1
=
1
1
4
2
4
3
+
1
=
1
1
4
3
12
3
+
1
=
1
4
4
3
+
1
=
19
4
5
20
3
+
1
=
11
4
6
12
3
+
2
=
1
5
4
3
12
3
+
2
=
1
1
4
4
4
3
+
2
=
1
3
4
5
20
3
+
2
=
1
1
4
6
12
3
+
3
=
1
1
4
4
2
3
+
3
=
1
7
4
5
20
3
+
3
=
1
1
4
6
4
3
+
4
=
1
11
4
5
20
3
+
4
=
1
5
4
6
12
3
+
5
=
1
7
4
6
12
3
+
1
=
1
1
5
2
10
3
+
1
=
14
5
3
15
3
+
1
=
17
5
4
20
3
+
1
=
4
5
5
5
3
+
1
=
23
5
6
30
3
+
2
=
1
4
5
3
15
3
+
2
=
1
1
5
4
10
3
+
2
=
1
5
5
3
+
2
=
14
5
6
15
3
+
3
=
1
7
5
4
20
3
+
3
=
1
1
5
5
5
3
+
3
=
1
1
5
6
10
3
+
4
=
1
2
5
5
5
3
+
4
=
1
4
5
6
15
3
+
5
=
1
13
5
6
30
3
+
1
=
1
6
2
3
+
1
=
5
6
3
6
3
+
1
=
3
6
4
4
3
+
1
=
7
6
5
10
3
+
1
=
2
6
6
3
3
+
2
=
1
1
6
3
6
3
+
2
=
1
6
4
3
+
2
=
9
6
5
10
3
+
2
=
5
6
6
6
3
+
3
=
1
1
6
4
4
3
+
3
=
1
1
6
5
10
3
+
3
=
1
6
6
3
+
4
=
1
3
6
5
10
3
+
4
=
1
1
6
6
6
3
+
5
=
1
1
6
6
3
4
+
1
=
1
3
5
2
10
4
+
1
=
1
2
5
3
15
4
+
1
=
1
1
5
4
20
4
+
1
=
1
5
5
4
+
1
=
29
5
6
30
4
+
2
=
1
7
5
3
15
4
+
2
=
1
3
5
4
10
4
+
2
=
1
1
5
5
5
4
+
2
=
1
2
5
6
15
4
+
3
=
1
11
5
4
20
4
+
3
=
1
2
5
5
5
4
+
3
=
1
3
5
6
10
4
+
4
=
1
3
5
5
5
4
+
4
=
1
7
5
6
15
4
+
5
=
1
19
5
6
30
4
+
1
=
1
1
6
2
6
4
+
1
=
1
6
3
4
+
1
=
11
6
4
12
4
+
1
=
13
6
5
15
4
+
1
=
5
6
6
6
4
+
2
=
1
1
6
3
3
4
+
2
=
1
1
6
4
6
4
+
2
=
1
1
6
5
15
4
+
2
=
1
6
6
4
+
3
=
1
5
6
4
12
4
+
3
=
1
4
6
5
15
4
+
3
=
1
1
6
6
6
4
+
4
=
1
7
6
5
15
4
+
4
=
1
1
6
6
3
4
+
5
=
1
1
6
6
2
5
+
1
=
1
1
6
2
3
5
+
1
=
1
1
6
3
6
5
+
1
=
1
1
6
4
12
5
+
1
=
1
1
6
5
30
5
+
1
=
1
6
6
5
+
2
=
1
1
6
3
2
5
+
2
=
1
1
6
4
3
5
+
2
=
1
7
6
5
30
5
+
2
=
1
1
6
6
6
5
+
3
=
1
7
6
4
12
5
+
3
=
1
13
6
5
30
5
+
3
=
1
1
6
6
3
5
+
4
=
1
19
6
5
30
5
+
4
=
1
1
6
6
2
5
+
5
=
1
2
6
6
3
7
+
1
=
1
3
8
2
8
7
+
1
=
1
5
8
3
24
7
+
1
=
1
1
8
4
8
7
+
1
=
1
3
8
5
40
7
+
1
=
1
1
8
6
24
7
+
2
=
1
13
8
3
24
7
+
2
=
1
3
8
4
8
7
+
2
=
1
11
8
5
40
7
+
2
=
1
5
8
6
24
7
+
3
=
1
5
8
4
8
7
+
3
=
1
19
8
5
40
7
+
3
=
1
3
8
6
8
7
+
4
=
1
27
8
5
40
7
+
4
=
1
13
8
6
24
7
+
5
=
1
17
8
6
24
7
+
1
=
1
5
9
2
18
7
+
1
=
1
1
9
3
9
7
+
1
=
1
1
9
4
36
7
+
1
=
44
9
5
45
7
+
1
=
17
9
6
18
7
+
2
=
1
4
9
3
9
7
+
2
=
1
5
9
4
18
7
+
2
=
1
8
9
5
45
7
+
2
=
1
1
9
6
9
7
+
3
=
1
19
9
4
36
7
+
3
=
1
17
9
5
45
7
+
3
=
1
5
9
6
18
7
+
4
=
1
26
9
5
45
7
+
4
=
1
4
9
6
9
7
+
5
=
1
11
9
6
18
7
+
1
=
1
1
10
2
5
7
+
1
=
1
1
10
3
30
7
+
1
=
19
10
4
20
7
+
1
=
9
10
5
10
7
+
1
=
13
10
6
15
7
+
2
=
1
11
10
3
30
7
+
2
=
1
1
10
4
5
7
+
2
=
1
1
10
5
10
7
+
2
=
1
1
10
6
30
7
+
3
=
1
9
10
4
20
7
+
3
=
1
3
10
5
10
7
+
3
=
1
1
10
6
5
7
+
4
=
1
1
10
5
2
7
+
4
=
1
11
10
6
30
7
+
5
=
1
8
10
6
15
7
+
1
=
1
3
11
2
22
7
+
1
=
32
11
3
33
7
+
1
=
39
11
4
44
7
+
1
=
46
11
5
55
7
+
1
=
53
11
6
66
7
+
2
=
1
10
11
3
33
7
+
2
=
1
3
11
4
22
7
+
2
=
1
2
11
5
55
7
+
2
=
32
11
6
33
7
+
3
=
1
17
11
4
44
7
+
3
=
1
13
11
5
55
7
+
3
=
1
3
11
6
22
7
+
4
=
1
24
11
5
55
7
+
4
=
1
10
11
6
33
7
+
5
=
1
31
11
6
66
7
+
1
=
1
1
12
2
12
7
+
1
=
11
12
3
12
7
+
1
=
5
12
4
6
7
+
1
=
47
12
5
60
7
+
1
=
3
12
6
4
7
+
2
=
1
1
12
3
4
7
+
2
=
1
1
12
4
12
7
+
2
=
59
12
5
60
7
+
2
=
11
12
6
12
7
+
3
=
1
1
12
4
3
7
+
3
=
1
11
12
5
60
7
+
3
=
1
1
12
6
12
7
+
4
=
1
23
12
5
60
7
+
4
=
1
1
12
6
4
7
+
5
=
1
5
12
6
12
8
+
1
=
1
7
9
2
18
8
+
1
=
1
2
9
3
9
8
+
1
=
1
5
9
4
36
8
+
1
=
1
4
9
5
45
8
+
1
=
1
1
9
6
18
8
+
2
=
1
5
9
3
9
8
+
2
=
1
7
9
4
18
8
+
2
=
1
13
9
5
45
8
+
2
=
1
2
9
6
9
8
+
3
=
1
23
9
4
36
8
+
3
=
1
22
9
5
45
8
+
3
=
1
7
9
6
18
8
+
4
=
1
31
9
5
45
8
+
4
=
1
5
9
6
9
8
+
5
=
1
13
9
6
18
8
+
1
=
1
3
10
2
10
8
+
1
=
1
2
10
3
15
8
+
1
=
1
1
10
4
20
8
+
1
=
1
10
5
8
+
1
=
29
10
6
30
8
+
2
=
1
7
10
3
15
8
+
2
=
1
3
10
4
10
8
+
2
=
1
1
10
5
5
8
+
2
=
1
2
10
6
15
8
+
3
=
1
11
10
4
20
8
+
3
=
1
2
10
5
5
8
+
3
=
1
3
10
6
10
8
+
4
=
1
3
10
5
5
8
+
4
=
1
7
10
6
15
8
+
5
=
1
19
10
6
30
8
+
1
=
1
5
11
2
22
8
+
1
=
1
2
11
3
33
8
+
1
=
43
11
4
44
8
+
1
=
51
11
5
55
8
+
1
=
59
11
6
66
8
+
2
=
1
13
11
3
33
8
+
2
=
1
5
11
4
22
8
+
2
=
1
7
11
5
55
8
+
2
=
1
2
11
6
33
8
+
3
=
1
21
11
4
44
8
+
3
=
1
18
11
5
55
8
+
3
=
1
5
11
6
22
8
+
4
=
1
29
11
5
55
8
+
4
=
1
13
11
6
33
8
+
5
=
1
37
11
6
66
8
+
1
=
1
1
12
2
6
8
+
1
=
1
12
3
8
+
1
=
11
12
4
12
8
+
1
=
13
12
5
15
8
+
1
=
5
12
6
6
8
+
2
=
1
1
12
3
3
8
+
2
=
1
1
12
4
6
8
+
2
=
1
1
12
5
15
8
+
2
=
1
12
6
8
+
3
=
1
5
12
4
12
8
+
3
=
1
4
12
5
15
8
+
3
=
1
1
12
6
6
8
+
4
=
1
7
12
5
15
8
+
4
=
1
1
12
6
3
8
+
5
=
1
1
12
6
2
9
+
1
=
1
2
10
2
5
9
+
1
=
1
7
10
3
30
9
+
1
=
1
3
10
4
20
9
+
1
=
1
1
10
5
10
9
+
1
=
1
1
10
6
15
9
+
2
=
1
17
10
3
30
9
+
2
=
1
2
10
4
5
9
+
2
=
1
3
10
5
10
9
+
2
=
1
7
10
6
30
9
+
3
=
1
13
10
4
20
9
+
3
=
1
1
10
5
2
9
+
3
=
1
2
10
6
5
9
+
4
=
1
7
10
5
10
9
+
4
=
1
17
10
6
30
9
+
5
=
1
11
10
6
15
9
+
1
=
1
7
11
2
22
9
+
1
=
1
5
11
3
33
9
+
1
=
1
3
11
4
44
9
+
1
=
1
1
11
5
55
9
+
1
=
65
11
6
66
9
+
2
=
1
16
11
3
33
9
+
2
=
1
7
11
4
22
9
+
2
=
1
12
11
5
55
9
+
2
=
1
5
11
6
33
9
+
3
=
1
25
11
4
44
9
+
3
=
1
23
11
5
55
9
+
3
=
1
7
11
6
22
9
+
4
=
1
34
11
5
55
9
+
4
=
1
16
11
6
33
9
+
5
=
1
43
11
6
66
9
+
1
=
1
1
12
2
4
9
+
1
=
1
1
12
3
12
9
+
1
=
1
12
4
9
+
1
=
19
12
5
20
9
+
1
=
11
12
6
12
9
+
2
=
1
5
12
3
12
9
+
2
=
1
1
12
4
4
9
+
2
=
1
3
12
5
20
9
+
2
=
1
1
12
6
12
9
+
3
=
1
1
12
4
2
9
+
3
=
1
7
12
5
20
9
+
3
=
1
1
12
6
4
9
+
4
=
1
11
12
5
20
9
+
4
=
1
5
12
6
12
9
+
5
=
1
7
12
6
12
10
+
1
=
1
9
11
2
22
10
+
1
=
1
8
11
3
33
10
+
1
=
1
7
11
4
44
10
+
1
=
1
6
11
5
55
10
+
1
=
1
5
11
6
66
10
+
2
=
1
19
11
3
33
10
+
2
=
1
9
11
4
22
10
+
2
=
1
17
11
5
55
10
+
2
=
1
8
11
6
33
10
+
3
=
1
29
11
4
44
10
+
3
=
1
28
11
5
55
10
+
3
=
1
9
11
6
22
10
+
4
=
1
39
11
5
55
10
+
4
=
1
19
11
6
33
10
+
5
=
1
49
11
6
66
10
+
1
=
1
1
12
2
3
10
+
1
=
1
1
12
3
6
10
+
1
=
1
1
12
4
12
10
+
1
=
1
1
12
5
30
10
+
1
=
1
12
6
10
+
2
=
1
1
12
3
2
10
+
2
=
1
1
12
4
3
10
+
2
=
1
7
12
5
30
10
+
2
=
1
1
12
6
6
10
+
3
=
1
7
12
4
12
10
+
3
=
1
13
12
5
30
10
+
3
=
1
1
12
6
3
10
+
4
=
1
19
12
5
30
10
+
4
=
1
1
12
6
2
10
+
5
=
1
2
12
6
3
11
+
1
=
1
5
12
2
12
11
+
1
=
1
1
12
3
4
11
+
1
=
1
1
12
4
6
11
+
1
=
1
7
12
5
60
11
+
1
=
1
1
12
6
12
11
+
2
=
1
7
12
3
12
11
+
2
=
1
5
12
4
12
11
+
2
=
1
19
12
5
60
11
+
2
=
1
1
12
6
4
11
+
3
=
1
2
12
4
3
11
+
3
=
1
31
12
5
60
11
+
3
=
1
5
12
6
12
11
+
4
=
1
43
12
5
60
11
+
4
=
1
7
12
6
12
11
+
5
=
1
3
12
6
4
1
+
7
=
1
3
2
8
8
1
+
7
=
1
5
2
9
18
1
+
7
=
1
1
2
10
5
1
+
7
=
1
3
2
11
22
1
+
7
=
1
1
2
12
12
1
+
8
=
1
7
2
9
18
1
+
8
=
1
3
2
10
10
1
+
8
=
1
5
2
11
22
1
+
8
=
1
1
2
12
6
1
+
9
=
1
2
2
10
5
1
+
9
=
1
7
2
11
22
1
+
9
=
1
1
2
12
4
1
+
10
=
1
9
2
11
22
1
+
10
=
1
1
2
12
3
1
+
11
=
1
5
2
12
12
1
+
7
=
1
5
3
8
24
1
+
7
=
1
1
3
9
9
1
+
7
=
1
1
3
10
30
1
+
7
=
32
3
11
33
1
+
7
=
11
3
12
12
1
+
8
=
1
2
3
9
9
1
+
8
=
1
2
3
10
15
1
+
8
=
1
2
3
11
33
1
+
8
=
1
3
12
1
+
9
=
1
7
3
10
30
1
+
9
=
1
5
3
11
33
1
+
9
=
1
1
3
12
12
1
+
10
=
1
8
3
11
33
1
+
10
=
1
1
3
12
6
1
+
11
=
1
1
3
12
4
1
+
7
=
1
1
4
8
8
1
+
7
=
1
1
4
9
36
1
+
7
=
19
4
10
20
1
+
7
=
39
4
11
44
1
+
7
=
5
4
12
6
1
+
8
=
1
5
4
9
36
1
+
8
=
1
1
4
10
20
1
+
8
=
43
4
11
44
1
+
8
=
11
4
12
12
1
+
9
=
1
3
4
10
20
1
+
9
=
1
3
4
11
44
1
+
9
=
1
4
12
1
+
10
=
1
7
4
11
44
1
+
10
=
1
1
4
12
12
1
+
11
=
1
1
4
12
6
1
+
7
=
1
3
5
8
40
1
+
7
=
44
5
9
45
1
+
7
=
9
5
10
10
1
+
7
=
46
5
11
55
1
+
7
=
47
5
12
60
1
+
8
=
1
4
5
9
45
1
+
8
=
1
5
10
1
+
8
=
51
5
11
55
1
+
8
=
13
5
12
15
1
+
9
=
1
1
5
10
10
1
+
9
=
1
1
5
11
55
1
+
9
=
19
5
12
20
1
+
10
=
1
6
5
11
55
1
+
10
=
1
1
5
12
30
1
+
11
=
1
7
5
12
60
1
+
7
=
1
1
6
8
24
1
+
7
=
17
6
9
18
1
+
7
=
13
6
10
15
1
+
7
=
53
6
11
66
1
+
7
=
3
6
12
4
1
+
8
=
1
1
6
9
18
1
+
8
=
29
6
10
30
1
+
8
=
59
6
11
66
1
+
8
=
5
6
12
6
1
+
9
=
1
1
6
10
15
1
+
9
=
65
6
11
66
1
+
9
=
11
6
12
12
1
+
10
=
1
5
6
11
66
1
+
10
=
1
6
12
1
+
11
=
1
1
6
12
12
2
+
7
=
1
13
3
8
24
2
+
7
=
1
4
3
9
9
2
+
7
=
1
11
3
10
30
2
+
7
=
1
10
3
11
33
2
+
7
=
1
1
3
12
4
2
+
8
=
1
5
3
9
9
2
+
8
=
1
7
3
10
15
2
+
8
=
1
13
3
11
33
2
+
8
=
1
1
3
12
3
2
+
9
=
1
17
3
10
30
2
+
9
=
1
16
3
11
33
2
+
9
=
1
5
3
12
12
2
+
10
=
1
19
3
11
33
2
+
10
=
1
1
3
12
2
2
+
11
=
1
7
3
12
12
2
+
7
=
1
3
4
8
8
2
+
7
=
1
5
4
9
18
2
+
7
=
1
1
4
10
5
2
+
7
=
1
3
4
11
22
2
+
7
=
1
1
4
12
12
2
+
8
=
1
7
4
9
18
2
+
8
=
1
3
4
10
10
2
+
8
=
1
5
4
11
22
2
+
8
=
1
1
4
12
6
2
+
9
=
1
2
4
10
5
2
+
9
=
1
7
4
11
22
2
+
9
=
1
1
4
12
4
2
+
10
=
1
9
4
11
22
2
+
10
=
1
1
4
12
3
2
+
11
=
1
5
4
12
12
2
+
7
=
1
11
5
8
40
2
+
7
=
1
8
5
9
45
2
+
7
=
1
1
5
10
10
2
+
7
=
1
2
5
11
55
2
+
7
=
59
5
12
60
2
+
8
=
1
13
5
9
45
2
+
8
=
1
1
5
10
5
2
+
8
=
1
7
5
11
55
2
+
8
=
1
1
5
12
15
2
+
9
=
1
3
5
10
10
2
+
9
=
1
12
5
11
55
2
+
9
=
1
3
5
12
20
2
+
10
=
1
17
5
11
55
2
+
10
=
1
7
5
12
30
2
+
11
=
1
19
5
12
60
2
+
7
=
1
5
6
8
24
2
+
7
=
1
1
6
9
9
2
+
7
=
1
1
6
10
30
2
+
7
=
32
6
11
33
2
+
7
=
11
6
12
12
2
+
8
=
1
2
6
9
9
2
+
8
=
1
2
6
10
15
2
+
8
=
1
2
6
11
33
2
+
8
=
1
6
12
2
+
9
=
1
7
6
10
30
2
+
9
=
1
5
6
11
33
2
+
9
=
1
1
6
12
12
2
+
10
=
1
8
6
11
33
2
+
10
=
1
1
6
12
6
2
+
11
=
1
1
6
12
4
3
+
7
=
1
5
4
8
8
3
+
7
=
1
19
4
9
36
3
+
7
=
1
9
4
10
20
3
+
7
=
1
17
4
11
44
3
+
7
=
1
1
4
12
3
3
+
8
=
1
23
4
9
36
3
+
8
=
1
11
4
10
20
3
+
8
=
1
21
4
11
44
3
+
8
=
1
5
4
12
12
3
+
9
=
1
13
4
10
20
3
+
9
=
1
25
4
11
44
3
+
9
=
1
1
4
12
2
3
+
10
=
1
29
4
11
44
3
+
10
=
1
7
4
12
12
3
+
11
=
1
2
4
12
3
3
+
7
=
1
19
5
8
40
3
+
7
=
1
17
5
9
45
3
+
7
=
1
3
5
10
10
3
+
7
=
1
13
5
11
55
3
+
7
=
1
11
5
12
60
3
+
8
=
1
22
5
9
45
3
+
8
=
1
2
5
10
5
3
+
8
=
1
18
5
11
55
3
+
8
=
1
4
5
12
15
3
+
9
=
1
1
5
10
2
3
+
9
=
1
23
5
11
55
3
+
9
=
1
7
5
12
20
3
+
10
=
1
28
5
11
55
3
+
10
=
1
13
5
12
30
3
+
11
=
1
31
5
12
60
3
+
7
=
1
3
6
8
8
3
+
7
=
1
5
6
9
18
3
+
7
=
1
1
6
10
5
3
+
7
=
1
3
6
11
22
3
+
7
=
1
1
6
12
12
3
+
8
=
1
7
6
9
18
3
+
8
=
1
3
6
10
10
3
+
8
=
1
5
6
11
22
3
+
8
=
1
1
6
12
6
3
+
9
=
1
2
6
10
5
3
+
9
=
1
7
6
11
22
3
+
9
=
1
1
6
12
4
3
+
10
=
1
9
6
11
22
3
+
10
=
1
1
6
12
3
3
+
11
=
1
5
6
12
12
4
+
7
=
1
27
5
8
40
4
+
7
=
1
26
5
9
45
4
+
7
=
1
1
5
10
2
4
+
7
=
1
24
5
11
55
4
+
7
=
1
23
5
12
60
4
+
8
=
1
31
5
9
45
4
+
8
=
1
3
5
10
5
4
+
8
=
1
29
5
11
55
4
+
8
=
1
7
5
12
15
4
+
9
=
1
7
5
10
10
4
+
9
=
1
34
5
11
55
4
+
9
=
1
11
5
12
20
4
+
10
=
1
39
5
11
55
4
+
10
=
1
19
5
12
30
4
+
11
=
1
43
5
12
60
4
+
7
=
1
13
6
8
24
4
+
7
=
1
4
6
9
9
4
+
7
=
1
11
6
10
30
4
+
7
=
1
10
6
11
33
4
+
7
=
1
1
6
12
4
4
+
8
=
1
5
6
9
9
4
+
8
=
1
7
6
10
15
4
+
8
=
1
13
6
11
33
4
+
8
=
1
1
6
12
3
4
+
9
=
1
17
6
10
30
4
+
9
=
1
16
6
11
33
4
+
9
=
1
5
6
12
12
4
+
10
=
1
19
6
11
33
4
+
10
=
1
1
6
12
2
4
+
11
=
1
7
6
12
12
5
+
7
=
1
17
6
8
24
5
+
7
=
1
11
6
9
18
5
+
7
=
1
8
6
10
15
5
+
7
=
1
31
6
11
66
5
+
7
=
1
5
6
12
12
5
+
8
=
1
13
6
9
18
5
+
8
=
1
19
6
10
30
5
+
8
=
1
37
6
11
66
5
+
8
=
1
1
6
12
2
5
+
9
=
1
11
6
10
15
5
+
9
=
1
43
6
11
66
5
+
9
=
1
7
6
12
12
5
+
10
=
1
49
6
11
66
5
+
10
=
1
2
6
12
3
5
+
11
=
1
3
6
12
4
7
+
7
=
1
3
8
8
4
7
+
7
=
1
47
8
9
72
7
+
7
=
1
23
8
10
40
7
+
7
=
1
45
8
11
88
7
+
7
=
1
11
8
12
24
7
+
8
=
1
55
8
9
72
7
+
8
=
1
27
8
10
40
7
+
8
=
1
53
8
11
88
7
+
8
=
1
13
8
12
24
7
+
9
=
1
31
8
10
40
7
+
9
=
1
61
8
11
88
7
+
9
=
1
5
8
12
8
7
+
10
=
1
69
8
11
88
7
+
10
=
1
17
8
12
24
7
+
11
=
1
19
8
12
24
7
+
7
=
1
47
9
8
72
7
+
7
=
1
5
9
9
9
7
+
7
=
1
43
9
10
90
7
+
7
=
1
41
9
11
99
7
+
7
=
1
13
9
12
36
7
+
8
=
1
2
9
9
3
7
+
8
=
1
26
9
10
45
7
+
8
=
1
50
9
11
99
7
+
8
=
1
4
9
12
9
7
+
9
=
1
61
9
10
90
7
+
9
=
1
59
9
11
99
7
+
9
=
1
19
9
12
36
7
+
10
=
1
68
9
11
99
7
+
10
=
1
11
9
12
18
7
+
11
=
1
25
9
12
36
7
+
7
=
1
23
10
8
40
7
+
7
=
1
43
10
9
90
7
+
7
=
1
2
10
10
5
7
+
7
=
1
37
10
11
110
7
+
7
=
1
17
10
12
60
7
+
8
=
1
53
10
9
90
7
+
8
=
1
1
10
10
2
7
+
8
=
1
47
10
11
110
7
+
8
=
1
11
10
12
30
7
+
9
=
1
3
10
10
5
7
+
9
=
1
57
10
11
110
7
+
9
=
1
9
10
12
20
7
+
10
=
1
67
10
11
110
7
+
10
=
1
8
10
12
15
7
+
11
=
1
37
10
12
60
7
+
7
=
1
45
11
8
88
7
+
7
=
1
41
11
9
99
7
+
7
=
1
37
11
10
110
7
+
7
=
1
3
11
11
11
7
+
7
=
1
29
11
12
132
7
+
8
=
1
52
11
9
99
7
+
8
=
1
24
11
10
55
7
+
8
=
1
4
11
11
11
7
+
8
=
1
10
11
12
33
7
+
9
=
1
59
11
10
110
7
+
9
=
1
5
11
11
11
7
+
9
=
1
17
11
12
44
7
+
10
=
1
6
11
11
11
7
+
10
=
1
31
11
12
66
7
+
11
=
1
73
11
12
132
7
+
7
=
1
11
12
8
24
7
+
7
=
1
13
12
9
36
7
+
7
=
1
17
12
10
60
7
+
7
=
1
29
12
11
132
7
+
7
=
1
1
12
12
6
7
+
8
=
1
17
12
9
36
7
+
8
=
1
23
12
10
60
7
+
8
=
1
41
12
11
132
7
+
8
=
1
1
12
12
4
7
+
9
=
1
29
12
10
60
7
+
9
=
1
53
12
11
132
7
+
9
=
1
1
12
12
3
7
+
10
=
1
65
12
11
132
7
+
10
=
1
5
12
12
12
7
+
11
=
1
1
12
12
2
8
+
7
=
1
55
9
8
72
8
+
7
=
1
2
9
9
3
8
+
7
=
1
53
9
10
90
8
+
7
=
1
52
9
11
99
8
+
7
=
1
17
9
12
36
8
+
8
=
1
7
9
9
9
8
+
8
=
1
31
9
10
45
8
+
8
=
1
61
9
11
99
8
+
8
=
1
5
9
12
9
8
+
9
=
1
71
9
10
90
8
+
9
=
1
70
9
11
99
8
+
9
=
1
23
9
12
36
8
+
10
=
1
79
9
11
99
8
+
10
=
1
13
9
12
18
8
+
11
=
1
29
9
12
36
8
+
7
=
1
27
10
8
40
8
+
7
=
1
26
10
9
45
8
+
7
=
1
1
10
10
2
8
+
7
=
1
24
10
11
55
8
+
7
=
1
23
10
12
60
8
+
8
=
1
31
10
9
45
8
+
8
=
1
3
10
10
5
8
+
8
=
1
29
10
11
55
8
+
8
=
1
7
10
12
15
8
+
9
=
1
7
10
10
10
8
+
9
=
1
34
10
11
55
8
+
9
=
1
11
10
12
20
8
+
10
=
1
39
10
11
55
8
+
10
=
1
19
10
12
30
8
+
11
=
1
43
10
12
60
8
+
7
=
1
53
11
8
88
8
+
7
=
1
50
11
9
99
8
+
7
=
1
47
11
10
110
8
+
7
=
1
4
11
11
11
8
+
7
=
1
41
11
12
132
8
+
8
=
1
61
11
9
99
8
+
8
=
1
29
11
10
55
8
+
8
=
1
5
11
11
11
8
+
8
=
1
13
11
12
33
8
+
9
=
1
69
11
10
110
8
+
9
=
1
6
11
11
11
8
+
9
=
1
21
11
12
44
8
+
10
=
1
7
11
11
11
8
+
10
=
1
37
11
12
66
8
+
11
=
1
85
11
12
132
8
+
7
=
1
13
12
8
24
8
+
7
=
1
4
12
9
9
8
+
7
=
1
11
12
10
30
8
+
7
=
1
10
12
11
33
8
+
7
=
1
1
12
12
4
8
+
8
=
1
5
12
9
9
8
+
8
=
1
7
12
10
15
8
+
8
=
1
13
12
11
33
8
+
8
=
1
1
12
12
3
8
+
9
=
1
17
12
10
30
8
+
9
=
1
16
12
11
33
8
+
9
=
1
5
12
12
12
8
+
10
=
1
19
12
11
33
8
+
10
=
1
1
12
12
2
8
+
11
=
1
7
12
12
12
9
+
7
=
1
31
10
8
40
9
+
7
=
1
61
10
9
90
9
+
7
=
1
3
10
10
5
9
+
7
=
1
59
10
11
110
9
+
7
=
1
29
10
12
60
9
+
8
=
1
71
10
9
90
9
+
8
=
1
7
10
10
10
9
+
8
=
1
69
10
11
110
9
+
8
=
1
17
10
12
30
9
+
9
=
1
4
10
10
5
9
+
9
=
1
79
10
11
110
9
+
9
=
1
13
10
12
20
9
+
10
=
1
89
10
11
110
9
+
10
=
1
11
10
12
15
9
+
11
=
1
49
10
12
60
9
+
7
=
1
61
11
8
88
9
+
7
=
1
59
11
9
99
9
+
7
=
1
57
11
10
110
9
+
7
=
1
5
11
11
11
9
+
7
=
1
53
11
12
132
9
+
8
=
1
70
11
9
99
9
+
8
=
1
34
11
10
55
9
+
8
=
1
6
11
11
11
9
+
8
=
1
16
11
12
33
9
+
9
=
1
79
11
10
110
9
+
9
=
1
7
11
11
11
9
+
9
=
1
25
11
12
44
9
+
10
=
1
8
11
11
11
9
+
10
=
1
43
11
12
66
9
+
11
=
1
97
11
12
132
9
+
7
=
1
5
12
8
8
9
+
7
=
1
19
12
9
36
9
+
7
=
1
9
12
10
20
9
+
7
=
1
17
12
11
44
9
+
7
=
1
1
12
12
3
9
+
8
=
1
23
12
9
36
9
+
8
=
1
11
12
10
20
9
+
8
=
1
21
12
11
44
9
+
8
=
1
5
12
12
12
9
+
9
=
1
13
12
10
20
9
+
9
=
1
25
12
11
44
9
+
9
=
1
1
12
12
2
9
+
10
=
1
29
12
11
44
9
+
10
=
1
7
12
12
12
9
+
11
=
1
2
12
12
3
10
+
7
=
1
69
11
8
88
10
+
7
=
1
68
11
9
99
10
+
7
=
1
67
11
10
110
10
+
7
=
1
6
11
11
11
10
+
7
=
1
65
11
12
132
10
+
8
=
1
79
11
9
99
10
+
8
=
1
39
11
10
55
10
+
8
=
1
7
11
11
11
10
+
8
=
1
19
11
12
33
10
+
9
=
1
89
11
10
110
10
+
9
=
1
8
11
11
11
10
+
9
=
1
29
11
12
44
10
+
10
=
1
9
11
11
11
10
+
10
=
1
49
11
12
66
10
+
11
=
1
109
11
12
132
10
+
7
=
1
17
12
8
24
10
+
7
=
1
11
12
9
18
10
+
7
=
1
8
12
10
15
10
+
7
=
1
31
12
11
66
10
+
7
=
1
5
12
12
12
10
+
8
=
1
13
12
9
18
10
+
8
=
1
19
12
10
30
10
+
8
=
1
37
12
11
66
10
+
8
=
1
1
12
12
2
10
+
9
=
1
11
12
10
15
10
+
9
=
1
43
12
11
66
10
+
9
=
1
7
12
12
12
10
+
10
=
1
49
12
11
66
10
+
10
=
1
2
12
12
3
10
+
11
=
1
3
12
12
4
11
+
7
=
1
19
12
8
24
11
+
7
=
1
25
12
9
36
11
+
7
=
1
37
12
10
60
11
+
7
=
1
73
12
11
132
11
+
7
=
1
1
12
12
2
11
+
8
=
1
29
12
9
36
11
+
8
=
1
43
12
10
60
11
+
8
=
1
85
12
11
132
11
+
8
=
1
7
12
12
12
11
+
9
=
1
49
12
10
60
11
+
9
=
1
97
12
11
132
11
+
9
=
1
2
12
12
3
11
+
10
=
1
109
12
11
132
11
+
10
=
1
3
12
12
4
11
+
11
=
1
5
12
12
6
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