5/9 ×1/5
3/5×2
1/4 ×4/5
1/9×3/7
7/12×3/4
4/17×3/4
8/21×7/16
1/20×2/3
5/6×2/15
15/17 ×17/15
3/4×1/5
6/11×11/2
3/22×11/13
7/6×2/4
56 ×3/7
1×3/20
13/15 ×30
28×7/24
2/5×15/4
2/3＋4/15×5/8
5/16× 8/15-1/18
5/7×4/15 ×7/8
1/6×3/8×6/11
12/17 ×5/12 ×17
（ 7/9＋5/27）×5/4
5/6 ×7/8 ＋5/6×1/8
3/85×8/6