Homework Helper _ Lesson 7 Multiply Mixed

Name
Number and Operations — Fractions
5.NF.6
Lesson 7
Multiply Mixed
Numbers
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Homework Helper
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A swimming pool has two diving boards. The shorter diving board
1
1
is 2 yards high. The taller diving board is 1 the height of the
3
4
shorter board. How tall is the taller diving board?
_
_
1
1
Find 2_ × 1_.
4
3
9
1
1
4
2_ × 1_ = _ × _
4
3
4
3
Write each mixed number
as an improper fraction.
36
=_
Multiply.
=3
Simplify.
12
1
13
1
24
So, the taller diving board is 3 yards high.
Practice
Copyright © The McGraw-Hill Companies, Inc.
Multiply. Write in simplest form.
1
1
1. 5_ × 1_ =
3
4
2
1
2. 1_ × 3_ =
5
6
5
1
3. 7_ × 2_ =
8
6
Lesson 7 My Homework749
Problem Solving
4. The table shows some ingredients in lasagna.
If you make three times the recipe, how many
cups of cheese are needed?
Tomato
Sauce
Chopped
Onion
Cheese
3_ cups
1
_
cup
2_ cups
1
2
4
y!
s
e
e
h
c
Oh so
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3
5. Karyn purchased a square picture frame. Each side
1
measures 1_ feet. What is the area of the picture
4
frame in square feet?
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1
6. It takes Marty 1_ hours to get ready for school. If _ of that time is
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5
used to shower, what fraction of an hour does it take him to shower?
2
7.
Use Algebra Kallisto built a rectangular sign that
Copyright © The McGraw-Hill Companies, Inc. Michael Lamotte/Cole Group/Photodisc/Getty Images
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1
measured 2_ feet in length by 1_ feet in width. To find the area,
4
2
multiply the length and width. What is the area of the sign in
square feet? Write an equation to solve.
Test Practice
2
8. Antoinette bought 2_ pounds of grapes. If she bought
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1
bananas that weighed 1_ times as much as the grapes,
4
how much did the bananas weigh?
A
B
1
2_ pounds
6
1
3_ pounds
3
1
C 3_ pounds
4
1
D 3_ pounds
2
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14
2
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