7/6-1/2
7/10+2/3
5/2+9/7
5/6+8/3
7/3-4/5
2/8+1/8
6/8-3/8
5/9+3/9
5/12-1/12
53/14
41/30
3/8
63/18
23/15
8/9
8/12
4/12
