Reteach and Skills Practice Workbook

13–8
Name
Skills Practice
Date
3NS3.2
Add and Subtract Like Fractions
Find each sum or difference. Write in simplest form.
1. _ 7 8 - _ 2 8 =
10. _ 8
2. _ 3 4 + _ 1 4 =
3. _ 6
10 + _ 1
10 =
4. _ 8 9 - _ 7 9 =
5. _ 6 8 - _ 1 8 =
6. _ 2 8 + _ 3 8 =
7. _ 5
10 + _ 3
10 =
8. _ 1 4 + _ 2 4 =
9. _ 6 7 - _ 5 7 =
Solve.
9 - 4 _
9 =
11. 5 _
8 - 2 _
8 =
12. 1 _
3 + 1 _
3 =
13. 1 _
2 + 1 _
2 =
14. 9 _
12 - 4 _
12 =
15. 4 _
5 - 2 _
5 =
16. 5 _
7 - 1 _
7 =
17. 2 _
3 - 1 _
3 =
18. 3 _
9 + 4 _
9 =
19. Mario works at a snack bar near the beach for 2 hours each
Saturday. One Saturday, he started with 30 bottles of juice and
sold ___ 5 of the juice in the first hour. When he finished work,
10
he had ___ 2 of the juice left. What fraction did he sell in the
10
second hour?
20. Another Saturday when Mario was working at the snack bar, he
and his boss sold all the juice they had. If Mario sold ___ 7 of the
12
juice, what fraction did his boss sell?
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Grade 4 250 Chapter 13