Adding Fractions with Common Denominator

What do you need to have when adding unlike fractions?

• common denominator

• common numerator

• common numerator and denominator

Tags

CCSS.7.NS.A.1C

What would be the common denominator for adding 1/2 + 3/4?

• 6

• 4

• 9

• 2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What would be the common denominator for adding 3/9 + 4/6?

• 9

• 12

• 18

• 27

Which of these numbers could NOT be a common denominator for these two fractions?
1/6   and   1/4

• 12

• 18

• 24

• 36

What is the sum of these fractions in lowest terms?

• 5/12

• 5/24

• 6/12

• 6/144

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the sum of these fractions in lowest terms?

• 7/18

• 7/9

• 12/9

• 12/81

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Mr. Smith buys 5/8 pound of red grapes and 2/8 pound green grapes. How many pounds did Mr. Smith buy?

• 7/8 pound

• 3/8 pound

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

2/7 + 3/7 = 

• 4/7

• 5/7

• 5/14

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the least common denominator of 1/4 and 1/3?

• 4

• 3

• 12

• 8

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