Adding and Subtracting Fractions with Unlike Denominators Quiz

Find the least common denominator for the fractions 1/3 and 2/5.

• 8

• 10

• 12

• 15

Convert the fractions 3/4 and 2/7 to like denominators.

• The like denominators for 3/4 and 2/7 are 28.

• The like denominators for 3/4 and 2/7 are 20.

• The like denominators for 3/4 and 2/7 are 15.

• The like denominators for 3/4 and 2/7 are 11.

Add the fractions 1/2 and 3/8.

• 7/8

• 2/3

• 4/10

• 5/8

Subtract the fractions 5/6 and 1/4.

• 3/10

• 4/5

• 7/12

• 2/3

What is the least common denominator for the fractions 2/9 and 5/6?

• 15

• 20

• 18

• 12

Convert the fractions 4/11 and 3/8 to like denominators.

• The like denominator for 4/11 and 3/8 is 15.

• The like denominator for 4/11 and 3/8 is 50.

• The like denominator for 4/11 and 3/8 is 32.

• The like denominator for 4/11 and 3/8 is 88.

Add the fractions 2/5 and 1/3.

• 3/7

• 5/8

• 7/11

• 11/15

Subtract the fractions 7/8 and 2/9.

• 1/3

• 4/9

• 53/72

• 5/8

Find the least common denominator for the fractions 3/7 and 4/9.

• 63

• 36

• 21

• 45

Convert the fractions 5/6 and 2/11 to like denominators.

• The like denominators for 5/6 and 2/11 are 1 and 1 respectively.

• The like denominators for 5/6 and 2/11 are 66 and 66 respectively.

• The like denominators for 5/6 and 2/11 are 11 and 6 respectively.

• The like denominators for 5/6 and 2/11 are 30 and 66 respectively.