What is the ratio 15 : 75 in lowest terms?
1/5
2/5
1/4
3/5
The ratio 15 : 75 can be simplified by dividing the numerator and denominator by their greatest common divisor, which is 15.
15/15 = 1
75/15 = 5
Therefore, the ratio 15 : 75 in lowest terms is 1 : 5.
So the correct answer is 1/5.