Five-Minute Check (over Lesson 4–8)

Main Idea and Vocabulary

Example 1:Compare Rational Numbers

Example 2:Compare Rational Numbers

Example 3:Real-World Example

Concept Summary: Fractions-Decimals-Percents

Example 4:Test Example

• rational numbers

• common denominator

• least common denominator (LCD)

• Compare and order fractions, decimals, and percents.

Compare Rational Numbers

Graph each rational number on a number line. Mark off

equal size increment of between –4 and –3.

Answer: The number line shows that .

1. A

2. B

3. C0% 0%0%

A. >

B. <

C. =

Compare Rational Numbers

Use Chinese Math to find the LCM of 12 and 16. The LCM is 48. The LCD of 12 and 16 is 48.

1. A

2. B

3. C0% 0%0%

A. >

B. <

C. =

DOGS According to the Pet Food Manufacturer’s Association, 11 out of 25 people own large dogs and 13 out of 50 people own medium dogs. Do more people own large or medium dogs?

Answer: A greater fraction of people own large dogs that own medium dogs.

1. A

2. B

0%0%

A. Summer

B. Fall

SEASONS A survey showed that 21 out of 50 people stated that summer is their favorite season and 13 out of 25 people stated that fall is their favorite season. Do more people prefer summer or fall?

Four frozen dinners had the following amounts of

vegetables: 0.6, 72%, and Which list shows

the numbers in order from least to greatest?

Read the Item Write each amount as a decimal. Then compare.

Solve the Item

Answer: So, the answer is C.

1. A

2. B

3. C

4. D

The proportion of male students in four classes are

as follows: Which list shows

the numbers in order from least to greatest?

A. B.

C. D.0% 0%0%0%

End of the Lesson

Homework – Pg. 218-219, # 8-39 all

Five-Minute Check (over Lesson 4–8)

Image Bank

Math Tools

Percents

Prime Factorization

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 4-8)

C. 12

Find the LCM of 4 and 12.

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 4-8)

D. 39

Find the LCM of 3 and 13.

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 4-8)

A. 60

Find the LCM of 12 and 15.

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 4-8)

C. 24

Find the LCM of 4, 6, and 8.

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 4-8)

B. 32

Find the LCM of 42 × 2 and 22 × 4.

1. A

2. B

3. C

4. D0% 0%0%0%

(over Lesson 4-8)

C. 270

Find the LCM of 54 and 90.