0
Anonymous
7 to 4
Wiki User
3 to 1
3:2
30/12 = 5/2 or 5 : 2
4/12 = 4÷4/12÷4 = 1/3
90
21% = 21/100
It is 21/1 or 21:1
21/7 = 3 Or, a 3 to 1 ratio.
+33.33%
13:21
The ratio is N:21
As 21 is 3 x 7 the ratio 7:21 = 1:3