1/2 + 3/8 =
3/5 + 1/20 =
2/15 + 1/5 =
3/10 + 3/5 =
2/4 + 2/4 =
1/2 + 1/7 =
1/4 + 7/20 =
1/2 + 1/6 =
2/9 + 5/18 =
1/4 + 1/6 =
5/12
7/8
9/14
1/2
2/3
1
3/5
1/3
9/10
13/20
