Question

63/70= 11/55= 30/35= 15/20= 42/68= 27/135= 17/51= 3/81= 18/5

Answer 1

就是这些（依次的答案）

9/10

1/5

6/7

3/4

21/34

1/5

1/3

1/27

1/3

1/3

1/2

1/3

2/3

7/4