6th Grade Math Textbook, Fundamentals

(Marvins-Underground-K-12) #1
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.


  1.  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
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