15/18 = 5/6
It is: 3 to 1
1 to 6
6 to 7
It is 6:1.
6/18 = 1/3
9:6 6:4
It is a 2 to 1 ratio (2:1).
ratio is 18 to 6 which is 3 to 1.
6x3=18 11x3=33 so 6=18 11=33
5 over 6. However, this is a fraction, not a ratio
18 : 15 = 6×3 : 5×3 = 6 : 5