2/5 - 2/8 =
1/2 - 3/7 =
1/3 - 1/10
3/7 - 1/5 =
1/2 - 2/6 =
3/4 - 1/5 =
4/8 - 1/6 =
4/4 - 2/5 =
3/5 - 1/4 =
2/3 - 2/6 =
3/5
1/14
1/6
11/20
8/35
7/30
3/20
7/20
1/3
