Adding Fractions with Unlike Denominators

What do you need to have when adding unlike fractions

• common denominator

• common numerator

• common numerator and denominator

• common fractions

Tags

CCSS.7.NS.A.1C

What is a good common denominator for this problem?

• 18

• 9

• 24

• 12

What is a good common denominator for this problem?

• 24

• 18

• 32

• 16

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the sum of these fractions?

• 4/5

• 3/20

• 17/20

• 4/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Match the following fractions with their sums.

• 1/3 + 2/9

• 2 2/10

• 1 + 6/5

• 5/9

• 1/2 + 8/5

• 1/10

• 1/20 + 1/20

• 2 1/10

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What number could be a common denominator for these three fractions?

• 9

• 8

• 12

• 6

Which of these numbers could NOT be a common denominator for these two fractions?

• 12

• 18

• 24

• 36

What math equation is being represented in the picture?

Tags

CCSS.4.NF.B.3A

What is the least common denominator for these fractions?

• 48

• 56

• 16

• 24