adding and subtracting unlike fractions

Sherrie is taking two suitcases on a trip. One suitcase weighs

6 2/3 and the other suitcase weighs 2 3/4 pounds. What is the combined weight of the suitcases?

• 8 5/7

• 8 11/12

• 9 5/12

• 9 5/7

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

A notebook is

10 7/8 inches long and 8 1/4 inches wide. How much longer is it than it is wide?

• 2 1/16

• 2 3/16

• 2 5/8

• 2 13/16

Tags

CCSS.7.NS.A.1C

A recipe calls for ¾ teaspoon vanilla flavoring and ⅛ teaspoon orange flavoring. How much more vanilla flavoring is needed than orange flavoring?

• 2/4 teaspoon

• 5/8 teaspoon

• 2/12 teaspoon

• 5/12 teaspoon

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Matthew ran 2/5 of a mile on Monday and 1/2 of a mile on Tuesday. Jake ran 2/3 of a mile total. Jake says he ran farther than Matthew because 2/3 is greater than 3/7. Is Jake correct? If not, explain Jake’s misconception and provide your mathematical reasoning to support who ran farther.

• yes , because 3/7 is greater than 2/3

• yes, becasue 2/5 +1/2 = 3/7

• no, because you added two fractions

• no, because 9/10 is greater than 2/3

Tags

CCSS.4.NF.A.2

Sara has 3/4 cup of flour for a recipe. She has 1/2 cup. How much more flour does she need?

• 1/2 cup

• 4/6 cup

• 1 1/4

• 1/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2