Adding & Subtracting Fractions with Like Denominators
Adding & Subtracting Fractions with Unlike Denominators
Adding & Subtracting improper fractions
Vocabulary for Working with Fractions
100
1/6 + 4/6
5/6
100

1/4 + 5/8

7/8

100

9/6 + 6/3

7/2

100

Answers must be ___________. (Hint: This is the last step you should always complete when working with fractions.)

Simplified

200
3/4 - 1/4
1/2
200
2/5 + 1/2
9/10
200

-8/4 + 9/2

5/2

200

Is the top number in a fraction

Numerator
300

9/10 - 7/10

1/5

300

7/12 - 1/2

1/12

300

16/3 - 6/5

62/15

300

The bottom part of a fraction

denominator

400

2/12 + 4/12

1/2

400

5/6 - 2/12

3/4

400

19/11 + 4/3

101/33

400

When the denominators in two or more fractions are the same, it is called the

common denominator

500

13/15 + 12/15

5/3

500

11/12 - 3/8

13/24

500

23/2 - 43/5

29/10

500

What is used as the common denominator when adding and subtracting fractions? 

Lowest Common Multiple (LCM)

500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
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500