Reteach and Skills Practice Workbook

Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
13–8
Name
Reteach
Date
3NS3.2
Add and Subtract Like Fractions
1 1
1 1
1 1 1 1
6 6
6 6
6 6 6 6
1 1
3 3
2_ +
2_ =
4_
6
6
6 = _ 2 3
1 1 1 1 1
5 5 5 5 5
4_ -
3_ =
1_
5
5 5
1 1 2. 1 1 1 3. 1 1 1
8 8 8
4 4 4
3 3 3
1 1
5. 1 1
6 6
4 4
1 1 1 1 1
8 8 8 8 8
You can use fraction models to add fractions with like
denominators.
You can also use fraction models to subtract fractions with like
denominators.
Find each sum or difference. Write in simplest form.
1. 1 1
8
4. 1
6
6. 1
8
1_
8 + 3 _
8 = 1_
4 + 2 _
4 = 2_
3 + 1 _
3 =
1
6
4_
6 - 1 _
6 = 2_
4 - 1 _
4 =
1
8
7_
8 - 5 _
Chapter Resources
Grade 4 249 Chapter 13