18/15= 6/5
2/2
2 1/4
20/16= 5/4
2/5
8/20= 4/10
5/2
3/7
10/4
4/8
3/3
5/5
4/4
3 3/5
35/63= 5/9
5 3/2
10/8
7/3
4 5/2
36/48= 6/8
