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Unit 3 - Lesson 8 - Grade 5: Illustrative Mathematics

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Grade 5 Unit 3

Lesson 8: Apply Fraction Multiplication

CC BY 2021 Illustrative Mathematics

Grade 5 Unit 3

Lesson 8: Apply Fraction Multiplication

CC BY 2021 Illustrative Mathematics

Lesson: Apply Fraction Multiplication

Number Talk: Fraction Multiplication (Warm Up)

Flags

More Flags

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1
Cool Down: The Flag of Chad
1

Find the value of each expression mentally.

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Pitanje 1
1.

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Pitanje 2
2.

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Pitanje 3
3.

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Pitanje 4
4.

Jada has a small replica of a flag of Thailand.

It is 5 inches wide and 7 1/2 inches long.

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Pitanje 5
5.

What is the area of the flag? Explain or show your reasoning.

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Pitanje 6
6.

Each red stripe is 5/6 inches wide. What is the area of each red stripe? Explain or show your reasoning.

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Pitanje 7
7.

The blue stripe is 10/6 inches wide. What is the area of the blue stripe? Explain or show your reasoning.

Pitanje 8
8.

Han has a replica of the flag of Colombia.

It is 3 1/2 inches wide and 5 1/4 inches long. The yellow stripe is 1/2 of the width of the flag and the blue and red stripes are each 1/4 of the width.

1/4 x 3 1/2 = 7/8. The answer is 7/8 inch. What is the question?

Pitanje 9
9.

Han has a replica of the flag of Colombia.

It is 3 1/2 inches wide and 5 1/4 inches long. The yellow stripe is 1/2 of the width of the flag and the blue and red stripes are each 1/4 of the width.

1/2 x 3 1/2 = 7/4 and 7/4 x 21/4 = 147/16. The answer is 147/16 square inches. What is the question?

Pitanje 10
10.

The area of this flag of Chad is square centimeters. The blue, yellow, and red sections are all equal. What is the area of the blue part of the flag? Explain or show your reasoning.