It is: 1/3 = 2/6
If you mean: 3 to 5 and 12 to 20 then yes they are both equivalent
There are four equivalent ratios of the numbers 8 to 32. The four equivalent ratios are 4/16, 8/12, 7/1 and 3/5.
10 to 6; 15 to 9; 20 to 12
5:12
no they are not
No
Equivalent ratios to 4/5 can be several such as 8/10 or 16/20.
5 to 110 to 2
5 to 6 10 to 12 15 to 18
They are: 6/30 and 1/5
1 to 3 2 to 6 3 to 9