Adding and Subtracting fractions

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

• 3
• 4
• 7
• 12

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

• 30
• 11
• 6
• 5

Which of these numbers could NOT be a common denominator for these two fractions?
1/3   and   3/6

• 3
• 6
• 12
• 18

Which of these numbers could NOT be a common denominator for these two fractions?
2/4   and   3/8

• 32
• 12
• 8
• 24

Fill in the blank in order to create a true number sentence:
1/2 = __ /8

• 2
• 4
• 6
• 8

3/4 + 2/8 = 

• 1
• 5/12
• 6/32
• 5/8

5/7 + 1/28 = 

• 6/35
• 12/196
• 21/28
• 1

4/5 - 1/20 = 

• 0
• 20/15
• 3/15
• 15/20

93/100 - 4/5 = 

• 1/2
• 13/100
• 89/95
• 89/100

While making desserts for a bake sale, Lyla used 7/10 of a scoop of brown sugar as well as 1/2 of a scoop of white sugar. How much more brown sugar did Lyla use?

• 1 1/2
• 2/3
• 1/5 
• 3/4

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2