10/63
7/9 * 8/10
7/12 * 1/2
2/15
1/3 * 2/5
5/12 * 2/3
56/90
3/42
3/5 * 2/6
4/5 * 3/6
8/10 * 3/4
2/9 * 5/7
4/9 * 5/8
7/24
10/36
20/72
24/40
6/30
12/30
3/7 * 1/6
