Fractions Adding and Subtracting

What is the sum of these fractions in lowest terms?

• 4/5

• 3/20

• 17/20

• 4/20

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

3/9 + 1/3 =

• 7/9

• 4/12

• 2/3

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

What number could be a common denominator for these two fractions? 2/3 and 3/4

• 3

• 7

• 4

• 12

4/6 - 1/9 = SIMPLIFY

• 3/54

• 30/54

• 5/9

• 15/27

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Carefully following a recipe, Ben used exactly 5/8 of a cup of oil and 3/4 of a cup of water. How many cups of liquid did Ben use in all?

• 1/8

• 2/3

• 1 1/2

• 1 3/8

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

What number could be a common denominator for these two fractions?
1/5   and   5/6?

• 30

• 11

• 6

• 5

Sally is painting her house. She used 1/8 of a gallon of paint in her bathroom, and 2/6 of a gallon of paint in her bedroom. How much paint did she use in all?

• 11/24

• 3/14

• 3/24

• 11/14

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Frances rode her bike for one-fifth of a mile on Monday and two-fifths of a mile on Tuesday. How many miles did she ride altogether?

• Frances rode her bike for three-fifths of a mile altogether.

• Frances rode her bike for four-fifths of a mile altogether.

• Frances rode her bike for two-fifths of a mile altogether.

• Frances rode her bike for six-fifths of a mile altogether.

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

To add or subtract, two fractions must have...

• a monkey

• a common denominator

• unlike terms

• the same numerators

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

It took Gerard five-thirds of an hour to complete his math homework on Monday, three-fourths of an hour on Tuesday, and five-sixths of an hour on Wednesday. How many hours did he take to complete his homework altogether?

• It took Gerard a half an hour to complete his homework altogether.

• It took Gerard two and two-fourth hours to complete his homework altogether.

• It took Gerard three and one-thrid hours to complete his homework altogether.

• It took Gerard three and one-fourth hours to complete his homework altogether.

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2