Simplify the Following Ratios
Question 1:
9
:
63
1
:
7
Question 2:
20
:
36
5
:
9
Question 3:
81
:
90
9
:
10
Question 4:
55
:
66
5
:
6
Question 5:
12
:
48
1
:
4
Question 6:
60
:
70
6
:
7