6th Grade Math Textbook, Progress

12

Fractions I

Add and Subtract Fractions: Like Denominators

To add fractions with likedenominators:

Add the numerators.
^28

^48

^2  8
^4

Write the result over the

common denominator.

^28 

^38 



6

8

Express the sum in 
^6

8



^6

8





2

2



^3

4




simplest form.

Study these examples.


 1

1

2


 
^4

9


 1

7

2


 
^1

9


182

182 
^44 
^23

^39

^39 
^33 
^13

Add or subtract the fractions. Write each answer in simplest form.

1. 
   ^35
   2.
   ^23
   3.
   ^59
   4.
   172
   5.
   ^34
   


^15 
 
^13 
 
^19 
 
 152 
 
^34 

6. 
   
   8
   9
   
   
   ^1
   9
   
   7.
   
   
   1

8

0





1

7

0


 8. 
^1

2

1

4





2

2

4


 9.
^1

1

2

2



^1

1

2

2

To subtract fractions with likedenominators:

Subtract the numerators.

Write the result over the

common denominator.

Express the difference in

simplest form. 


2

8



^28 
^22 
^1

4

^4

8




2

8 



^28 

1

8

2

8

4

8

6

8

3

8

015

8

7

8

1

8

2

8

4

8

6

8

3

8

015

8

7

8

GCF of 6 and 8: 2

GCF of 2 and 8: 2

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