by Rachelle

(united states)

Example: Mary is making cupcakes. She needs 3/4 of a cup of flour. She had 2/4 of a cup flour left in the pantry.

How much more does she need ?

3/4 - 2/4 = ?

Subtract the numerator since the fractions already have a common denominator.

3/4 - 2/4 = 1/4

great work!! :)