1. Warm Up
Problem of the Day
Lesson Presentation
Lesson Quizzes

2. Write each fraction as a decimal.
Warm Up
Write each fraction as a decimal. 3 4 3 8 1.
0.75 2.
0.375 3 5 6 15 3.
0.6 4.
0.4

3. Problem of the Day
Alex noted that 4 tulip bulbs bloomed out of every 5 bulbs that he planted. Write the part that bloomed of the total amount of bulbs planted as a fraction and a decimal.
, 0.8 4 5

4. Learn to model percents and to write percents as equivalent fractions and decimals.

5. Vocabulary
percent

6. A percent is a ratio of a number to 100
A percent is a ratio of a number to 100. The symbol % is used to indicate that a number is a percent.
= 6% 6
100
Reading Math
The word percent means “per hundred.” So 6% means “6 out of 100.”

7. Additional Example 1: Modeling Percents
Write the percent modeled by each grid.
A B.
shaded
total
_______ 32
100
___
shaded
total
_______ 66
100
___
= 32%
= 66%

8. Check It Out: Example 1
Write the percent modeled by each grid.
A B.
shaded
total
_______ 44
100
___
shaded
total
_______ 75
100
___
= 44%
= 75%

9. Additional Example 2: Writing Percents as Fractions
Write 28% as a fraction in simplest form.
28% = 28
100
Write the percent as a fraction with a denominator of 100. 7 25 =
Simplify. 7 25
So 28% can be written as

10. Check It Out: Example 2
Write 90% as a fraction in simplest form.
90% = 90
100
Write the percent as a fraction with a denominator of 100. 9 10 =
Simplify. 9 10
So 90% can be written as

11. Additional Example 3: Writing Percents as Decimals
Write 17% as a decimal.
Method 1
Use pencil and paper. 17
100
Write the percent as a fraction with a
denominator of 100.
17% =
= 0.17
Divide 17 by 100.

12. Additional Example 3 Continued
Write 17% as a decimal.
Method 2
Use mental math.
Move the decimal point two places to the left.
17%
= 0.17

13. Check It Out: Example 3
Write 24% as a decimal.
Method 1
Use pencil and paper. 24
100
Write the percent as a fraction with a
denominator of 100.
24% =
= 0.24
Divide 24 by 100.

14. Check It Out: Example 3 Continued
Write 24% as a decimal.
Method 2
Use mental math.
Move the decimal point two places to the left.
24%
= 0.24

15. Lesson Quizzes
Standard Lesson Quiz
Lesson Quiz for Student Response Systems

16. Lesson Quiz
1. Write the percent modeled by the grid.
36%
2325
2. Write 92% as a fraction in simplest form.
3. Write 16.4% as a decimal.
0.164

17. Lesson Quiz for Student Response Systems
1. Identify the percent modeled by the grid.
A. 30%
B. 40%
C. 50%
D. 60%

18. Lesson Quiz for Student Response Systems
2. Which of the following represents 84% as a fraction in simplest form?
A C.
B D.
22 25
21 25
43 50
41 50

19. Lesson Quiz for Student Response Systems
3. Which of the following represents 15.7% as a decimal?
A. 15.7
B. 1.57 C D