Question

Which ratio is the simplest form of 68:84?
A 2:3
17:21
34:42
D 21:17

Answer 1

17:21

Explanation:

The ratio 68:84 in its simpliest form is;

68:84 (Since it can divided by 2 perfectly);

34:42 (We also divide this by 2 )

17:21

17:21 is the final answer and it can be divide any further. Since 17 is a prime number, it can't be divided and also 21 can be divided by 3 but 17 can't be divided by 3 so we leave the final answer like that.