1/4 = 3/121/6 = 2/124/9 = 16/367/12 = 21/365/6 = 10/123/4 = 9/121/12 = 1/121/18 = 1/181/24 = 1/241/36 = 1/3633/8 = 33/83/4 = 9/12
1/4 = 3/12
1/6 = 2/12
4/9 = 16/36
7/12 = 21/36
5/6 = 10/12
3/4 = 9/12
1/12 = 1/12
1/18 = 1/18
1/24 = 1/24
1/36 = 1/36
33/8 = 33/8
3/4 = 9/12