Download Grade 8 Unit 3.7 Extra Practice

Extra Practice 7
Lesson 3.7: Dividing Mixed Numbers
1.
Write each mixed number as an improper fraction.
a) 2 2
b) 1 1
7
2.
3.
4.
c) 3 5
6
d) 7 3
8
5
Use common denominators to find each quotient.
1 1
3
1
3
1
a) 12 ÷ 8
b) 24 ÷ 116
c) 45 ÷ 115
d) 52 ÷ 8
Use multiplication to find each quotient.
3
3
1
3
a) 35 ÷ 120
b) 64 ÷ 25
c) 58 ÷ 212
d) 63 ÷ 76
c) 1 5 ÷ 2 4
d) 3 1 ÷ 22
7
5
1
2
7
1
Divide. Estimate to check.
a) 2 2 ÷ 1 1
3
4
b) 3 1 ÷ 2 3
5
4
8
5
5. Which statement has the greatest value? How do you know?
a) 2 3 ÷
d) 2
4
3
4
–
1
3
1
3
b) 2 3 +
e) 2
4
3
4

1
3
3
1
c) 2 3 
f) 2
4
3
4
+
1
3
3
4
1
3
Extra Practice Sample Answers
Extra Practice 7
Lesson 3.7
1. a) 16
b) 7
2. a) 12
7
3. a)
c) 29
d) 38
b) 2 10
c) 2 7
d) 6 2
21
2
52
25
2
58
40
43
6
8
17
3
3
23
b)
4.a) 2 2
b) 1 9
15
55
5
16
c)
7
d)
c) 65
d) 1 1
112
3
5. 2 3  1 = 8 1 ; dividing a number by 1 will give a greater answer than adding 1 to the number, multiplying the number
4
by
1
3
3
4
, subtracting
dividing by 1
3
3
1
3
from the number, or dividing the number by 3; adding
3
3
4
to the number will give a lesser answer than