Lesson 5-10 for exercise sets. &KDSWHU
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Divide: ()
() • ()
1 Express as a mixed number.
The signs are the same,
so the quotient is positive.
1
8 Multiply by the
reciprocal.
7
9
16
9
2 • 8
9 • ( 1 )
8
1
2
9
2
9
1
8
2
(^19) Divide:
•
134 Express as mixed number.
The signs are different, so
the quotient is negative.
7
4
7 • 1
4 • 1
7
20
5
4 1
1
Multiply by the
reciprocal.
5
1
7
20
1
5
7
20
1
5
7
(^220)
Divide: 10
10
•
20
Multiply the reciprocal
of the divisor by the
dividend.
2
1
10
1
1
2
10
1
1
2
1
2
20
1
10 • 2
1 • 1
3 Divide: 20
20
•
•
Multiply the reciprocal
of the divisor by the
dividend.
1
20
2
3
1
(^2010)
2
3
1
1
30
2
3
2
3
2
3
1 • 1
3 • 10
20
1
4
To divide signed fractions, use the same sign rules as you use for dividing integers.
You can also divide an integer by a fraction or a fraction by an integer.
12
•
• 161
3
4
12
1
12
4
3
4
1
1
12
3
4
3
4
1
•
• ^15115
5
3
3
5
9 3 5 5 3 1
9
1
3
9
1
9
1
2
A has a fraction or mixed number in the numerator, the
denominator, or both. To simplify, divide the numerator by the denominator.
complex fraction
•
• ^16151151
6
5
5
6
8 9 5 6 6 5
2
8
9
3
8
9
8
9
3
Divide. Express your answer in simplest form.
- 2. 3. (30) 4. 5.
6.Discuss and Write Explain the difference in how you simplify 21 ^38 and •.^1238
7
8
1
2
5
6
7
10
5
6
4
5
1
2
3
8
3
4