No, they are not equivalent.
3:8
3/8 is the equivalent of 12/32
32 - (8 x 3) + 4 = 12
They are: 3 to 8 or 6 to 16
If you mean: 12/32 then it is 3/8
3:4
3:8
It equals 70
3/8 is the equivalent of 12/32
32 - (8 x 3) + 4 = 12
They are: 3 to 8 or 6 to 16
If you mean: 12/32 then it is 3/8
no
It is 3x-36
6/16 is equivalent to 3/8 or 12/32, 18/48
6/16 and 12/32
Some possible answers are 240/320, 2424/3232.