Adding Unlike Denominators

• 14/16

• 7/8

• 8/7

• 4/10

Tags

TEKS.MATH.5.3H

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

• 30
• 11
• 6
• 5

Tags

CCSS.4.NF.A.2

3/5 + 7/10

• 13/10
• 10/15
• 10/5
• 15/15

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

• 12/17
• 17/20
• 20/17
• 2  1/2

Tags

CCSS.7.NS.A.1C

• 13/15
• 1 7/12
• 1
• 9/15

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Is this a correct answer?

• Yes, the student correctly added.
• No, you cannot add unlike denominators
• No, 5 + 7 is not 12
• No, 2 + 3 is not 5

Tags

TEKS.MATH.5.3H

What is a good common denominator for this problem? 

 $\frac{3}{9}+\frac{1}{6}$  

• 18

• 9

• 24

• 12

Tags

CCSS.4.NF.A.1

CCSS.4.NF.A.2

 James is helping his dad paint his house. They mixed $\frac{5}{9}$ gallons of white paint and  $\frac{1}{6}$  gallons of blue pain. How many gallons was the mixture in all? 

•  $\frac{6}{18}$   gallons

•  $\frac{13}{18}$   gallons

•  $\frac{4}{5}$   gallons

•  $\frac{1}{6}$   gallons

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Add 2/3 + 5/12=?

• 7/12
• 1 1/12
• 11/12

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Drew ate 1/3 of a cake for breakfast and 2/5 of the cake for lunch. How much cake did Drew eat?

• 1/15 of a cake

• 10/15 of a cake

• 3/8 of a cake

• 11/15 of a cake

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2