Lesson 4.6 - Fractions And Percents

Five-Minute Check (over Lesson 4–5) Main Idea and Vocabulary Key Concept: Percent Example 1:Write Ratios as Percents Example 2:Write Ratios as Percents Example 3:Write a Fraction as a Percent Example 4:Write a Fraction as a Percent Example 5:Write a Percent as a Fraction

• Write fractions as percents and percents as fractions.

• ratio • percent

Write Ratios as Percents Write the ratio as a percent. Diana scored 63 goals out of 100 attempts.

Answer: Diana scored on 63% of her attempts.

Write the ratio as a percent. Alicia sold 34 of the 100 cookies at the bake sale. B. 34%

0% D

A B C 0% D C

0% B

A

0%

1. 2. 3. 4.

Write Ratios as Percents Write the ratio as a percent. In a survey, 31.9 out of 100 people preferred crunchy peanut butter.

Answer: So, 31.9% of the people surveyed preferred crunchy peanut butter.

Write the ratio as a percent. 73.4 out of 100 people preferred the chicken instead of the roast beef. C. 73.4%

0% D

A B C 0% D C

0% B

A

0%

1. 2. 3. 4.

Write a Fraction as a Percent

First, find an equivalent fraction with a denominator of 100. Then write the fraction as a percent.

= Answer:

.

D. 55%

0% D

A B C 0% D C

0% B

A

0%

1. 2. 3. 4.

FISHING William caught and released 20 trout on his fishing trip. Twelve of them were rainbow trout. What percent of the trout he caught were rainbow trout? Write an equivalent fraction with a denominator of 100. = 60%

Answer: So, 60% of the trout were rainbow trout.

READING Mitchell read 18 out of 25 chapters of a book during his winter vacation. What percent of the chapters did he read? C. 72%

0% D

A B C 0% D C

0% B

A

0%

1. 2. 3. 4.

Write a Percent as a Fraction Write 22% as a fraction in simplest form.

Definition of percent

Simplify.

Answer:

Write 84% as a fraction in simplest form. A. B. C.

0% D

0% B

A

0%

A B C 0% D C

D.

1. 2. 3. 4.

End of the Lesson

Homework – Pg 204-205, # 10-33, 41, 47-49

Five-Minute Check (over Lesson 4–5) Image Bank Math Tools

Percents Prime Factorization

(over Lesson 4-5)

Write the repeating decimal 1.22222 using bar notation. A. 1.2 B. 1.2

0% D

0% B

D. 1.2

A

0%

A B C 0% D C

C. 0.12

1. 2. 3. 4.

(over Lesson 4-5)

Write the repeating decimal 0.15151515 using bar notation. A. 15.0 B. 1.5

0% D

0% B

D. 0.15

A

0%

A B C 0% D C

C. 0.15

1. 2. 3. 4.

(over Lesson 4-5)

Use bar notation if the decimal is a repeating decimal. A. 1.2 B. 1.4

0% D

0%

A B C 0% D C

A

D. 2.6

0%

B

C. 2.4

1. 2. 3. 4.

(over Lesson 4-5)

Use bar notation if the decimal is a repeating decimal. A. 0.6 B. 0.652

0% D

0% B

D. 0.571

A

0%

A B C 0% D C

C. 0.625

1. 2. 3. 4.

(over Lesson 4-5)

Use bar notation if the decimal is a repeating decimal. A. 0.9 B. 0.1

0% D

0% B

D. 0.01

A

0%

A B C 0% D C

C. 0.09

1. 2. 3. 4.

(over Lesson 4-5)

Write 2.65 as a fraction in simplest form. A. B.

0%

A B C 0% D

0% D

A

0%

B

D.

1. 2. 3. 4.

C

C.