Homework Helper Practice Lesson 11 Add Mixed

Name
Number and Operations – Fractions
5.NF.1, 5.NF.2
Lesson 11
Add Mixed
Numbers
eHelp
Homework Helper
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3
1
Find 4_ + 7_ .
4
8
1
Write an equivalent fraction for 7_ so that the fractions
4
all have the same denominators. The LCD is 8.
1
1× 2 = _
2
7_ = 7 _
7
×
4
4
2
Write an equivalent fraction with a denominator of 8.
8
Add.
3
3
1
2
4_ + 7_ = 4_ + 7_
8
4
8
Write 7_ as 7_ .
1
4
8
3 +_
2
=4+7+_
8
2
8
Group the wholes and the fractions together.
8
5
= 11_
8
3
5
1
So, 4_ + 7_ = 11_ .
8
4
8
Practice
Estimate, then add. Write each sum in simplest form.
1
7
1. 2_ + 5_ =
3
3
2. 9_ + 8_ =
5
1
3. 3_ + 6_ =
4. 1_ + 4 _ =
3
4
5. 11_ + 6 _ =
1
11
6. 9_ + 12 _ =
Copyright © The McGraw-Hill Companies, Inc.
10
1
12
10
5
12
4
4
5
15
8
2
2
20
Lesson 11 My Homework681
Problem Solving
3
7. A flower is 9_ inches tall. In one week, it grew
4
1_ inches. How tall is the flower at the end of the
8
week? Write in simplest form.
1
8. Find ten and three-sevenths plus eighteen and
two-sevenths. Write in words in simplest form.
6
9.
Explain to a Friend Connor is filling
a 15-gallon wading pool. On his first trip, he carried
5
1
3_ gallons of water. He carried 3_ gallons on his
6
12
1
second trip and 3_ gallons on his third trip. Suppose
2
Test Practice
1
10. Benjamin had 2_ gallons of fruit punch left after a
3
3
party. He had 1_ gallons of lemonade left. How many
4
total gallons did he have left?
A
B
4_ gallons
1
12
1
3_ gallons
12
C
D
1_ gallons
5
12
5
_
gallon
12
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Copyright © The McGraw-Hill Companies, Inc.
he carries 5 gallons on his next trip. Will the pool be
filled? Explain.