common denominators
3/4 2/16
16 or 64
23/40 plus 11/40
34/40
4/5 + 1/4=
21/20 = 1 1/20
2 1/3 + 3 1/4
5 7/12
9/5
1 4/5
1/5 2/10
10 or 50
5/12 plus 7/12
12/12 or 1
2/3 + 3/6=
7/6 or 1 1/6
14 1/3 + 6 1/5
20 8/15
16/5
3 1/5
1/3 1/4
12
7/16 plus 7/16 =
14/16
4/6 + 4/8 =
28/24 or 1 4/24
15 1/3 + 4 2/3
20
38/5
7 3/5
2/3 3/8
24
4/5 + 9/5 =
13/5 or 2 3/5
2/3 + 1/8
19/24
8 2/3 + 5 1/2
14 1/6
91/10
9 1/10
1/2 2/3
6
5 1/2 + 5 1/2 =
11 /2 or 2 1/2
12/8
1 4/8
3 2/4 + 1 7/8=
5 3/8