Compare and order fractions whose denominators are all multiples of the same number.

What this means, in plain words

The denominator is the number underneath the line in a fraction. It tells you how many equal parts the whole was split into.

A multiple of a number is what you get when you multiply it by a whole number, so 12 is a multiple of 3.

A fraction describes part of a whole, or part of a set, once the whole has been split into equal pieces.