Question

Find part of a group

Answer 1

6/10 x 10/1
6 x 10 = 60
10 x 1 = 10
60/10 = 6

1/2 x 10/1
1 x 10 = 10
2 x 1 = 2
10/2 = 5

3/4 x 20/1
3 x 20 = 60
4 x 1 = 4
60/4 = 15