Question

8 gray buttons out of 20 buttons

A.2/5
B.4/10
C.2/3
D.5/2

40 boys out of 70students
A.3/7
B.1/2
C.4/7
D.7/10

Answer 1

8 gray buttons out of 20 button: 4/10

40 boys out of 70 students: 7/10

Answer 2

the first would could be 4/10 or 2/5

the second one would be 4/7

hope this helped