Convert Fractions, Decimals, And Percents

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Chapter/Lesson: Chapter 7 Lesson 9, 10, 11 Page: 326-330
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Objective/Title: Convert Fractions, Decimals, and Percents
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Important Terms
Quick Solve
Decimals: a number that has one or
Decimal to %: move decimal point to the right 2
places
more numbers to the right of a decimal
% to Decimal: move decimal point to the left 2
Percent: ratio of a number to 100
places
Fraction to %: write equivalent fraction with
Fraction: a number that names a part of
denominator of 100. Then write the numerator as
a whole, part of a collection, or part of a
the %.
×
a
?
region
b
100
% to Fraction: put the number over 100. Simplify.
n% = n
÷
100 ÷
Fraction to decimal: divide
a
b a
b
Practice Questions
Express each decimal as a percent or percent to decimal. Then order from least to greatest in original #’s
1. 17% 0.56 0.18
2. 250% 2.49 200%
3. 18% 0.15 99%
4. 0.22 0.01 0.83
0.17
56%
18%
2.50
249% 2.00
0.18
15% 0.99
22%
1%
83%
17% < 0.18 < 0.56
200% < 2.49 < 250%
0.15 < 18% < 99%
0.01 < 0.22 < 0.83
5.
48% 0.48
6. 2.38 238%
7. 77% 0.77
8. 6.01 601%
9. 37.5% 0.375
10. 6.8 680%
Write an equivalent percent or fraction in simplest form.
17
1.
1
25%
2.
40%
3.
75%
3
4.
85%
5.
160%
8
3
2
1
20
4
4
5
5
5
50
6. 80%
4
7.
90%
8.
25%
9. 145%
29
9
10. 2% 1
9
1
200
10
5
20
20
50
Change all numbers to a decimal or percent. Then order from least to greatest in original #’s
1. 0.65
3
3.0
1
2. 5
80
1.2
1.9
3. 0.12 1
11% 0.20 4. 6 125% 0.95
5
2
6
100
10
5
1 < 3 < 0.65 < 3.0
80 < 5 < 1.2 < 1.9
1 < 11% < 0.12 < 0.20
0.95 < 6 < 125%
2
5
100
6
10
5
5.
3
1
0.61
65%
6. 7
43%
1.95
7. 1.1
7
99%
8. 4%
0.05
2
5
2
5
10
20
1 < 3 < 0.61 < 65%
43% < 7 < 1.95
7 < 99% < 1.1
4% < 0.05 < 2
2
5
5
10
20

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