Number and Operations – Fractions

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Lesson 2

Estimate Products of Fractions

PracticeEstimate each product. Draw a bar diagram if necessary.

1. 2 _ 3 × 26 2. 7 _

8 × 5 _

6 3. 5 1 _

5 × 8 5 _

6

Homework Helper

Find the estimated area of the floor rug shown.

Estimate 6 1 _ 6 × 3 5 _

6 .

Round each mixed number to the nearest whole number.

Round 6 1 _ 6 down to 6. Round 3 5 _

6 up to 4.

6 1 _ 6 × 3 5 _

6 ≈ 6 × 4

≈ 24

So, the area of the floor rug is about 24 square feet.

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3 ft

6 ft

56

16 ft

5

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Lesson 2 My Homework�717

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Problem Solving

Use the table to answer Exercises 4 and 5.

4. 3 Justify Conclusions The table shows the results of a class survey about pets. Suppose 53 students were surveyed. About how many students have one pet? Justify your answer.

5. If 100 students are surveyed, about how many students own 2 or more pets? Explain.

6. A rectangular floor measures 10 1 _ 8 feet by 13 3 _

4 feet. If Mary buys

150 square feet of carpet, will she have enough carpet to cover the floor?

Test Practice 7. A cup of water holds about 8 ounces. If a

recipe calls for 1 _ 3 cup of water, which is the

best estimate of the number of ounces that are needed? Draw a bar diagram if necessary.

A 1 ounce C 6 ounces

B 3 ounces D 8 ounces

Students with PetsNumber of Pets

Fraction of Students with Pets

0 1 _ 20

1 1 _ 2

2 or more 9 _ 20

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718�Need more practice? Download Extra Practice at connectED.mcgraw-hill.com

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