3/4 1/6

3/4 1/6

3/3 2/x12

8/33 8/ 8/44 44/ 33×44

8/44×33/33

9/5 3/10

9/5×2/2

3/10×1

16/21 6/38

16/21×35/35

6/35×21/27

1153)

3/5,11/11 21/10