Adding Fractions with Like Denominators
Subtracting Fractions with Like Denominators
Adding Fractions with 10ths and 100ths
Common Denominators
100

1/2 + 1/2

1

100

3/4 - 1/4

2/4 or 1/2

100

9/100 + 2/10

29/100

100

What is is the common denominator

    4 and 8

8

200

3/8 + 4/8

7/8

200

6/8 - 2/8

4/8 or 1/2

200

8/10 + 7/100

87/100

200

What is the common denominator of

         4 and 5

20

300

5/16 + 12/16

17/16 or 1 1/16

300

15/16 - 9/16 

6/16

300

6/10 + 2/100

62/100

300

What is a the common denominator of 

         4 and 6

12 or 24

400

6/24 + 28/24 

34/24 or 1 10/24 or 1 5/12

400

21/24 - 15/24

6/24 or 1/4

400

5/10 + 16/100

66/100

400

What is the common denominator of 

        5 and 8

40

500

34/60 + 53/60

87/60 or 1 27/60 or 1 9/20

500

54/60 - 17/60

34/60 or 17/30

500

2/10 + 17/100

37/100

500

What is the common denominator of

        6 and 9

18

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