x fractions
2/3 x 4/5
8/15
1 1/2 x 2 1/3
3 1/2
2 x 4/6
1 1/3
1/2 ~ 2/1
1/4
1 1/2 ~ 2/3
2 1/4
2/3 x 5/6
5/9
2 3/4 x 3 4/5
10 9/20
1/3 ~ 3/4
4/9
2/5 ~ 4/8
4/5
2 3/4 ~ 3 1/3
33/40
4/7 x 18/20
18/35
4 2/5 x 1 6/6
8 4/5
1 2/3 ~ 3 3/2
10/27
20/30 ~ 3/4
8/9
3 2/5 ~ 6/9
5 1/10
28/2 x 27/28
13 1/2
6 1/6 x 3 3/8
20 13/16
4 2/7 x 3/2
6 3/7
400/2000 ~ 20/45
11 1/4
5 1/6 ~ 2 3/12
11 5/8
100/2000 x 30/102
68
20 1/2 x 20 7/7
430 1/2
8/12 x 18/23
12/23
4000/4020 ~ 2000/2100
22 1/3
2 5/17 ~ 8 2/6
(This is very hard)
117/425