6th Grade Math Textbook, Progress

Divide with Whole and Mixed Numbers

8-8

A curtain requires 2 yd of material. How many

curtains can be made from 39 yd of material?

To find how many curtains, c, divide: 39 
 2 c.

First estimate by using compatible numbers: 39 
 3 13.

Then divide.

To divide with whole numbers and mixed numbers:


Rename the whole number as a fraction

with a denominator of 1 and the mixed

number as a fraction greater than one.

Multiply by the reciprocal of the divisor.

Simplify using the GCF where possible.

Multiply the numerators. Then multiply the denominators.

Write the quotient in simplest form.

Fifteen 2^35 -yd curtains can be made

from 39 yd of material.

Study these examples.

3

5

3

5

39 
 2  

 

 

 15

c 15

15

1

3 
 5

1 
 1

5

13

39

1

13

5

39

1

3

5

3

1

When dividing with fractions, whole numbers, and mixed numbers,

rename the whole numbers and mixed numbers as fractions.

Divide: 1 
 6 w.

1 
 6  

 

w 247

7

24

7 
 1

4 
 6

1

6

7

4

3

4

3

4 Divide: 1 
 v.

1 
  

  

  9

v 9

9

1

3 
 3

1 
 1

6

1

3

2

1

6

3

2

1

6

1

2

1

6

1

2

3

1

Divide: 7 
 1 t.

7 
 1  

  

  4

t 4

4

1

2 
 2

1 
 1

6

11

22

3

11

6

22

3

5

6

1

3

5

6

1

3

2

1 1

2

Think

15 is close to the

estimate of 13.

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