Adding and Subtracting Fractions with Different Denominators

Robert made a fruit salad with 11/12 of a pound of melon and 1/6 of a pound of berries. How many pounds of fruit did Robert use in all?

• 1 1/12

• 3/4

• 2/3

• 1 1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Add 3/4 + 1/2

• 1/2

• 2/3

• 1 1/4

• 1 1/2

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

7/18 + 1/3

• 8/18

• 13/18

• 8/21

• 2/6

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

11/12  -  1/8

• 3/4

• 11/24

• 19/24

• 13/14

Tags

CCSS.7.NS.A.1C

5/8  -  9/16

• 2/3

• 1/16

• 15/16

• 7/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/20 + 3/4

• 18/20

• 6/20

• 9/10

• 9/20

Tags

CCSS.7.NS.A.1C

Q1. What is the value of the following expression?

• A) 5 1/2

• B) 1 1/6

• C) 5 5/14

• D) 4 19/24

Tags

CCSS.7.NS.A.1C

What is the first step in solving this problem? 
⅘ + ½ =

• Add the top parts of the fraction

• Rewrite the fractions in the simplest form. 

• Find a common denominator. 

• Make each fraction into an improper faction. 

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3

• 4

• 24

• 12

• 5 1/2
• 1 1/6
• 5 5/14
• 4 19/24

Tags

CCSS.7.NS.A.1C