Lesson 9.1 Percents And Fractions Math Worksheet Page 2
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Writing Fractions as Percents
E X A M P L E
To write a fraction as a percent, rewrite the fraction with a denominator
of 100.
4
4
2
0
8
0
3
3
2
5
7
5
80%
75%
a.
b.
5
5
2
0
1
0
0
4
4
2
5
1
0
0
Here are some common percents that you should remember.
Common Percents
1
1
1
3
2
1
10%
20%
25%
30%
40%
50%
1
0
5
4
1
0
5
2
3
7
3
4
9
60%
70%
75%
80%
90%
100%
1
5
1
0
4
5
1
0
3
Finding a Percent of a Number
E X A M P L E
3
To find 60% of 75, use the fact that 60%
and multiply.
5
3
p 75
60%
of 75
Write percent as a fraction.
5
15
p
3
7
5
Use rule for multiplying fractions.
p
5
1
Divide out common factor.
1
45
Multiply.
Y
In Exercises 5–8, write the fraction as a percent.
our turn now
1
0
3
7
1
5.
6.
7.
8.
2
5
2
0
1
0
5
0
9. Find 70% of 900.
10. Find 25% of 200.
4
Using Percents
E X A M P L E
1
6
For the tennis players described on page 415, you know that
16%
1
0
0
of the players were from the United States. To find the percent of tennis
players who were not from the United States, use the fact that the entire
group of players represents 100%.
100%
16%
84%
In October of 2001, 84% of the top 100 women’s tennis players
ANSWER
were not from the United States.
416
Chapter 9
Percents
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