Reteach and Skills Practice Workbook

13–5
Name
Skills Practice
Date
4NS1.5
Simplest Form
Write each fraction in simplest form. If it is in simplest form,
write simplest form.
1. ___ 18
48
6.
8 ___
64
2. ___ 5
55
3. ___ 9
15
7. ___ 2
16
8. 3 __
7
4. ___ 24
48
5. ___ 5
35
9.
10.
8 ___
40
4 ___
32
ALGEBRA Find the value of x to simplify each fraction.
11. ___ 6
48 = __ x 8
12. ___ 9
63 = __ x 7
13. ___ 32
40 = __ 4 x
14. ___ 40
60 = __ 2 x
15. ___ 30
36 = __ 5 x
16. ___ 7
21 = __ x 3
Write as a fraction in simplest form.
17. 6 eggs in a dozen
18. 4 days of the week
19. 3 months in a year
Copyright © Macmillan/McGraw-Hill, a division of The McGraw-Hill Companies, Inc.
20. vowels in the alphabet
Grade 4 242 Chapter 13