GMAS 6th Grade Mathematics Practice Test 2026 – The All-in-One Guide to Mastering Math Success!

Dividing a fraction to simplest terms means dividing top and bottom by their greatest common divisor. For 45/60, the largest common factor is 15. So 45 ÷ 15 = 3 and 60 ÷ 15 = 4, giving 3/4. You can also see it by first dividing by 5 to get 9/12, then by 3 to reach 3/4. The goal is a form where the numerator and denominator share no common factors besides 1, which is why 3/4 is the simplest. The other fractions correspond to different values or, in the case of 9/12, the same value as 3/4 but not in lowest terms.