2/3 : 4/7 =
1/2 x 9/6 =
4/5 x 8/3 =
5/4 : 1/2 =
8/2 x 7/4 =
8/9 : 7/6 =
6/7 x 2/9 x 3/4 =
3/7 : 9/6 =
8/3 x 4/9 x 7/6 =
8/5 : 3/2 =
1/5 : 6/9 =
7/3 x 1/8 x 2/5 =
112/81
2/7
7/6
3/4
16/21
3 /10
7/60
5/2
7
1/7
32 / 15
16/15