Subtraction of Fractions with Unlike Denominators

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

• 10

• 15

• 12

• 8

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

• 3/4 = 15/28, 2/7 = 10/28

• 3/4 = 12/28, 2/7 = 6/28

• 3/4 = 18/28, 2/7 = 12/28

• 3/4 = 21/28, 2/7 = 8/28

Subtract 5/8 from 3/9 and simplify the resulting fraction.

• -16/72

• -1/3

• 2/5

• 7/12

Tags

CCSS.7.NS.A.1C

Identify the mistake in the following subtraction: 2/5 - 1/3 = 1/8.

• 2/15

• 3/8

• 1/5

• 1/15

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Apply the concept of subtracting fractions with unlike denominators to solve the following real-life problem: If you have 3/4 of a pizza and you eat 1/6 of it, how much is left?

• 2/3

• 3/8

• 5/12

• 1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Find the least common denominator for the fractions 2/9 and 5/6.

• 18

• 25

• 3

• 12

Convert the fractions 4/7 and 3/10 to have like denominators.

• 10/40 and 7/30

• 4/7 and 3/10

• 14/70 and 3/10

• 40/70 and 21/70

Subtract 7/12 from 5/9 and simplify the resulting fraction.

• 13/36

• 4/5

• 9/21

• 2/3

Tags

CCSS.7.NS.A.1C

Identify the mistake in the following subtraction: 3/4 - 1/2 = 1/6.

• 5/8

• 2/3

• 7/10

• 1/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Apply the concept of subtracting fractions with unlike denominators to solve the following real-life problem: If you have 2/3 of a cake and you give away 1/4 of it, how much is left?

• 5/12

• 1/2

• 3/8

• 2/5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2