Fraction Fun

Adding Fractions

100

When adding fractions with unlike denominators, you must find  ______.

What is common denominator

200

4/5 + 1/15

What is 13/15

300

1/6 + 5/8

What is 19/24

400

1/9 + 5/6

What is 17/18

500

2/10 + 3/100

What is 23/100

Subtracting Fractions

100

When subtracting fractions, denominators must be ______.

What is common (the same).

200

1/3 - 1/6

what is 1/6

300

3/5 - 1/3

What is 4/15

400

17/18 - 2/3

What is 5/18

500

5/4 - 5/8

What is 5/8

Common Denominators

100

Find a common denominator for each pair of fractions:

3/8 and 2/3

What is 24

200

Find a common denominator for each pair of fractions:

1/6 and 4/3

What is 6 or 18

300

Find a common denominator for each pair of fractions:

3/7 and 1/2

What is 14

400

Find a common denominator for each pair of fractions:

5/12 and 3/5

What is 60

500

Find a common denominator for each pair of fractions:

3/8 and 9/20

What is 40