Add and Subtract Fractions Models

Before finding the difference, you must change ___ to ___.

• 1/2 to 2/4

• 1/4 to 1/2

• 1/4 to 2/4

• 1/2 to 1/2

2/3 - 2/4 =

• 4/7

• 2/12

• 2/3

• 1/4

What is 7/8 - 2/4?

• 3/8

• 11/8

• 5/12

• 9/12

The shaded part of the model below represents a fraction. The model represents another fraction being subtracted from the shaded fraction. Which expression does the model represent?

• 7/12 - 1/12

• 8/9 - 7/9

• 2/3 - 7/12

• 8/12 - 5/12

Angelica completed 4/5 of her homework on Monday and 2/15 of her homework on Wednesday. How much more of her homework did Angelica complete on Monday than on Wednesday?

• 14/15

• 2/10

• 2/3

• 2/5

Albert served a cake at his sister’s birthday party. More of the cake was then eaten after the party. The models below are shaded to show the amount of cake that was eaten at the party and after the party.

Which fraction of the cake was eaten altogether?

• 5/10

• 5/15

• 2/5

• 4/5

Mr. Hobson is training for a triathlon. The model below is shaded to represent the fraction of a mile that he completes in a practice session. How many miles does Mr. Hobson complete in all during his training session?

• 5/14 of a mile

• 5/8 of a mile

• 1 _3/8 miles

• 1 _1/8 miles

Kamari is writing a paper for history class. The model below shows the amount of his paper that he completed on Tuesday and Friday. How much more of the paper did Kamari complete on Tuesday than on Friday?

• 2/3

• 1/2

• 2/6

• 5/6

Which model is shaded to represent the expression 5/8 + 3/4?

• 
• 
• 
• 

Three sisters write a part of a short story. The first sister writes 1/3 of the story, the second sister writes 1/6 of the story, and the last sister writes 1/12 of the story. How much of the story have the sisters completed so far?

• 3/12

• 1/2

• 7/12

• 2/3