SUBTRACTING FRACTIONS WITH UNLIKE DENOMINATORS

4/5 - 1/20 = 

• 0

• 20/15

• 3/15

• 15/20

8/9 - 1/3 = 

• 7/6

• 5/9

• 2/3

• 8/27

 $\frac{8}{9}-\frac{5}{6}$  

•  $\frac{1}{18}$  

•  $\frac{3}{3}$  

•  $\frac{3}{18}$  

•  $\frac{1}{54}$  

3/4 - 2/10

• 11/20

• 9/10

• 11/24

• 9/4

4/5 - 2/3

• 3/15

• 2/2

• 2/15

2/3 - 1/2

• 1/6

• 1/5

• 5/6

What is the least common denominator for this problem? 3/16 + 2/4 =

• 24

• 8

• 16

• 32

What is the least common denominator of 1/7 and 3/6?

• 14

• 21

• 7

• 42

What is the least common denominator of 6/8 and 4/12?

• 12

• 24

• 8

• 16

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30

• 11

• 6

• 5