Adding and Subtracting Fractions and Mixed Numbers with Models

1/5 + 4/15=

• 5/20
• 3/10
• 3/15
• 5/15

Sally is painting her house. She used 1/8 of a gallon of paint in her bathroom, and 2/6 of a gallon of paint in her bedroom. How much paint did she use in all?

• 11/24
• 3/14
• 3/24
• 11/14

4/5 - 1/10

• 3/5
• 7/10
• 4/50
• 5/15

Tim has a board that is 5/6 feet long. He painted 2/18 feet of his board last night. How much more does Tim have left to paint?

• 13/18
• 7/24
• 7/18
• 3/7

2 1/4 + 3 2/12

• 5 3/4
• 5 5/12
• 5 3/12
• 5 2/4

Monique wants to bake a cake. She needs 2 1/8 cups of sugar, and 1 5/24 cups of flour. How many cups of ingredients will she use in all?

• 3 8/24 cups
• 3 3/32 cups
• 3 8/32 cups
• 3 3/24 cups

3 1/4 - 1 4/5

• 2 3/5
• 2 1/4
• 1 8/20
• 1 17/20

Jerome wants to walk to school. He lives 2 1/4 miles away. So far, he has walked 7/8 of a mile. How far does he have left to go?

• 1 3/8
• 2 6/4
• 1 6/8
• 2 3/4

What must you do first in order to add or subtract fractions with unlike denominators?

• add the numerators
• add the denominators
• find a common denominator
• find a common numerator

The number on top of the fraction bar is called the _______. The number under the fraction bar is called the ______.

• denominator; numerator
• numerator; denominator
• mixed number; fraction
• fraction; mixed number