We have the following fractions: 6/16, 9/24, 12/32 and 15/35. Which fraction is not equivalent to 3/8?

Numerator and denominator of a fraction 6/16 can be divided by 2 to get 3/8.

Numerator and denominator of a fraction 9/24 can be divided by 3 to get 3/8.

Numerator and denominator of a fraction 12/32 can be divided by 4 to get 3/8.

However, the numerator and denominator of a fraction 15/35 divided by 5 is 3/7 which is not equal to 3/8.

The answer is 15/35