Question

Which fraction is in simplest form?

​2-10​

​5-12​

​3-6​

​4-8

Answer 1

5/12 is in simplest form because you can not divide 5 into a half.

Answer 2

5/12

Explanation:

All of the other answers share at least one factor they can be divided by (the numerator in all cases). 5/12 however shares no factors and cannot be simplified anymore.