WARM-UP ACTIVITY

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 5-1)

A.

B.

C. 0 + 0 = 0

D. 1 + 1 = 2

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 5-1)

A. 3 ÷ 1 = 3

B. 4 ÷ 1 = 4

C. 1 ÷ 3 =

D. 1 ÷ 4 =

13

14

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

(over Lesson 5-1)

A. 1 × 19 = 19

B.

C.

D. 0 × 19 = 0

Main Idea and Vocabulary

Key Concept: Add and Subtract Like Fractions

Example 1:Add and Subtract Like Fractions

Example 2:Add and Subtract Like Fractions

Example 3:Add and Subtract Unlike Fractions

Example 4:Add and Subtract Unlike Fractions

Example 5:Real-World Example

Example 6:Real-World Example

• like fractions – fractions with the same denominators

• unlike fractions – fractions with different denominators

• Add and subtract fractions (2.2.8B) (M7.A.3.2.1).

BrainPOP:Adding and Subtracting Fractions

Add and Subtract Like Fractions

Answer:

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

A.

B.

C.

D.

Add and Subtract Like Fractions

Answer:

Write in simplest form.

Subtract the numerators.=

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

A. 0

B.

C.

D.

Add and Subtract Unlike Fractions

Method 1 Use a model.

Estimate

13

19

49

+

Add and Subtract Unlike Fractions

Method 2 Use the LCD.

Rename using the LCD. Add.

The least common denominator of and is 9.

Add and Subtract Unlike Fractions

Answer:

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

Find

A.

B.

C.

D. 1

Add and Subtract Unlike Fractions

Find Write in simplest form.

The LCD of 4 and 6 is 12.

Estimate

Rename the fractions using LCD, 12.

Subtract the fractions.

Add and Subtract Unlike Fractions

Answer:

1. A

2. B

3. C

4. D

A B C D

0% 0%0%0%

Find Write in simplest form.

A.

B.

C.

D. 2

ART A picture is mounted on art board that is

inch thick. The frame for the picture is inch

thick. How much thicker than the picture is the

frame?

Answer: The frame is inch thicker than the picture.

1. A

2. B

3. C

4. D0% 0%0%0%

A. mi

B. 1 mi

C. mi

D. mi

RUNNING Gregory ran of a mile on Monday and

of a mile on Tuesday. How much farther did he

run on Tuesday?

Answer: Jean and Ambrose ate of the pizza together.

34

1. A

2. B

3. C

4. D0% 0%0%0%

A. B.

C. pounds D. pounds

REVIEW - Solve

1. 5.

2.

3.

4.

6

3

6

1

7

1

7

3

3

2

8

3

8

3

6

5

4

3

8

7

3

2

7

2

9

2

24

11

8

51

End of the Lesson

Five-Minute Check (over Lesson 5–1)

Image Bank

Math Tools

Multiplying Fractions and Mixed Numbers

Adding and Subtracting Fractions

Multiplying and Dividing Fractions