For more practice, see Extra Practice.
EXERCISES
A Practice by Example
Example 1
(page 153)
Write each decimal as a fraction or mixed number in simplest form.
3
1. 0.3 10
2. 0.8 54
3. 0.75 34
1
4. 0.04 25
3
5. 0.15 20
17
6. 0.17 100
1
7. 0.008 125
8. 5.5 5 12
3
11. 5.075 540
8
12. 8.32 825
9. 4.25 414
Examples 2, 3
(page 154)
Write each fraction or mixed number as a decimal.
13.
14. 4 0.75
5
18.
7
21. 4 10 4.7
3
3
2
0.4
5
17. 6 0.83
B Apply Your Skills
149
10. 3.149 3 1,000
7
0.46
15
16. 10 0.9
11
19. 8 1.375
20. 9 1.1
7
1
22. 110 1.1
9
15. 8 0.375
23. 2 12 2.583
10
3
24. 5 20 5.15
1
25. Shopping You order 1 4 pounds of cheese at a deli. What decimal
number should the digital scale show? 1.25
26. Sports During the 2001 baseball season, Vladimir Guerrero had
184 hits in 599 official at bats. Use a calculator to change the fraction
184
to a decimal. Round your answer to the nearest thousandth. 0.307
599
27. Writing in Math Explain the steps you would use to write 0.125 as a
fraction in simplest form. See below left.
28. Data File, p. 117 Which wrenches measure 0.375 inch, 0.4375 inch, and
7 , 13
0.8125 inch? 38, 16
16
State whether each fraction is less than, equal to, or greater than 0.75.
7
21
4
29. 8 greater than 30.
5
31. 28 equal to
32.
11
15
Write each measurement as a mixed number and as a decimal.
33. four and three-fourths pounds
34. five and seven-eighths inches
Order each set of numbers from least to greatest.
7
35. 8, 0.8, 0.87
2
3
36. 1.65, 1 3 , 1 , 1.7
5
37. Stocks Until 2001, stock prices were reported as mixed numbers. Find
5
1
the dollar amounts represented by 6 8 and 8 2.
3-8
Fractions and Decimals
155-156
C
Challenge
Match each number with its location on the number line.
AB C
D
E
4
38. 4
3
D
5
5
39. 4.3 A
40. 4.43 C
1
41. 4 3 B
42. 4.7 E
43. Write the decimal 0.03 as a fraction. (Hint: How is the decimal different
1
3
than 3 = 0.3?) 100
44. Stretch Your Thinking Copy and fill in both blanks
with the same digit to make the equation true.
26
125
j6
= 0.j08
125
0.208
Test Prep
Multiple Choice
45. A carton of juice contains 1 liter, or about 33.8 fluid ounces. What is
33.8 as a mixed number in simplest form? A
4
A. 33 5
8
9
B. 33 10
4
C. 33 10
D. 34 5
8
46. Which decimal is equivalent to 15? G
F. 0.53
G. 0.53
H. 0.54
Take It to the NET
Online lesson quiz at
www.PHSchool.com
Web Code: aaa-0308
Short Response
I. 0.6
47. On a digital scale, some sliced ham weighs 1.38 pounds. Which
amount is nearest this weight? C
1
A. 1 4 pounds
3
1
B. 1 3 pounds
1
C. 1 8 pounds
1
3
D. 1 2 pounds
3
48. Three paint brushes have widths of 2 inch, 8 inch, and 4 inch.
a. Which brush is the least wide?
b. Justify your answer.
48a–b. See margin.
Mixed Review
Lesson 2-9
Use the Distributive Property to simplify each expression.
49. 3 3 42 126
Lesson 1-6
50. 9 3 68 612
51. 7 3 2.9 20.3
52. 4 3 9.1 36.4
Choose a strategy to solve each problem.
53. Delino lives 0.5 mile from the bus stop. How many miles does he walk
going to and from the bus stop five days a week for 36 weeks? 180 miles
54. Gardening Your uncle is planting a row of tomato plants along his back
fence. The fence is 30 feet long. If he places the plants 30 inches apart,
how many plants does he have room for? 13 plants
155-156
Chapter 3 Number Theory and Fractions