Subtracting Fractions With Unlike Denominators

What is 9/10 - 3/4?

• 5/7

• 3/20

• 3/8 

• 9/10

3/5 - 5/10

• 1/10

• 8/5

• 1/5

• 8/0

8/10 - 1/5

• 5/3

• 3/5

• 9/13

Stacy used 1/4 cup of sugar and 2/3 cup of flour to bake a cupcakes. How much more flour did Stacy use than sugar?

• 11/12 cup

• 10/12 cup

• 6/12 cup

• 5/12 cup

1 1/4 - 2/3 =

• 5/12

• 7/12

• 23/12

• 8/12

5/8 - 3/4 =

• 1/8

• 6/8

• 13/8

• 7/8

What is the best common denominator for this problem?

• 5

• 2

• 20

• 10

When the denominators are not the same, I must find a...

• common numerator

• common denominator

• equivalent fraction

• mixed number

When adding or subtracting fractions, I NEVER add or subtract the...

• numerators

• denominators

• mixed numbers

• equivalent fractions

Solve.

• 5/9

• 1 4/9

• 1 1/6

• 7/9