1. EXAMPLE 3
Writing a Percent as a Fraction 25
100 = = 1 4 =
a %
325
100 = = 13 4 = 1 4 3 =
b %
0.2
100 = = 2
1000 = 1
500 =
c %

2. EXAMPLE 4
Writing a Fraction as a Percent
Survey
The circle graph below shows the results of a survey of how 500 students prefer to spend their time.

3. EXAMPLE 4
Writing a Fraction as a Percent
What percent of students prefer to spend time with friends? a.
What percent of those who didn’t answer “other” said “with friends”? b. 40
500 = p
100 40
353 = p
100
= p
4000
= p
4000
= p 8
= p
11.33
ANSWER
8% of all of the students prefer to spend time with friends.
ANSWER
About 11% of the selected group said “with friends.”

4. GUIDED PRACTICE
for Examples 3 and 4
Write the percent as a decimal and as a fraction in simplest form. = 1.
35%
= .35
= 0.35 35
100 = 7 20

5. GUIDED PRACTICE
for Examples 3 and 4
Write the percent as a decimal and as a fraction in simplest form. 2. =
140%
= 1.40
= 1.4
140
100 7 5 = 2 1

6. GUIDED PRACTICE
for Examples 3 and 4
Write the percent as a decimal and as a fraction in simplest form. 3. =
0.75%
= .0075 = 75
10000 = 3
400
.75
100

7. GUIDED PRACTICE
for Examples 3 and 4
Write the percent as a decimal and as a fraction in simplest form. = 4.
12.12%
= .1212 =
100
12.12 =
2500
303

8. GUIDED PRACTICE
for Examples 3 and 4
Write the decimal or fraction as a percent.
= ( )% 5.
0.9
= 09.
= 90%

9. GUIDED PRACTICE
for Examples 3 and 4
Write the decimal or fraction as a percent. 6.
= ( )%
5.04
= 504.
= 504%

10. GUIDED PRACTICE
for Examples 3 and 4
Write the decimal or fraction as a percent. 7. 1 20
= 0.05
= ( ) %
= 05.
= 5%

11. GUIDED PRACTICE
for Examples 3 and 4
Write the decimal or fraction as a percent. 8. 3 8 =
= ( ) %
= 37.5
= 37.5%