5/7 : 2/1
1/3 x 8/3
2/8x4/5
2/6 : 8/3
1/9x9/7
2/3 : 3/7
1/2x9/8x6/3
2/1:3/9
2/8x1/3x5/4 =
3/1x5/2x6/7
9/2:7/2
5/4:2/6
5/48
5/16
4/1
9/7
2/21
14/9
6/1
5/14
1/8
27/24
2/9
48/7
