Add, Subtract Fractions

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

• 6

• 4

• 3

• 12

What is the least common denominator for 6/7 and 1/2?

• 12

• 14

• 7

• 6

Marty made two types of cookies.  He used 2/3 cup of sugar for one recipe and 1/4 cup  of sugar for the other.  How much sugar did he use in all? 

• 5/12

• 3/7

• 11/12

• 1/3

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

• 1

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

What is the sum of these fractions in lowest terms?

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What is the sum of these fractions in lowest terms?

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Find the sum.

• 7/18

• 7/9

• 12/9

• 12/81

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

• -4/3
• 13/18
• 4/3
• 2/9

Tags

CCSS.7.NS.A.1C