Adding and Subtracting Fractions Quiz Review

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

What number could be a common denominator for these two fractions?
3/10   and   1/5

• 5
• 10
• 15
• These numbers do not have a common denominator

1/3 + 1/2 = 

• 6/7
• 2/6
• 3/5
• 5/6

3/4 + 2/8 = 

• 1
• 5/12
• 6/32
• 5/8

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

4/5 - 1/20 = 

• 0
• 20/15
• 3/15
• 15/20

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

At the neighborhood block party, Cora served 1/2 of a gallon of hot chocolate and 1/10 of a gallon of apple cider. How much hot chocolate and apple cider did Cora serve?

• 3/5
• 2/5
• 2/11
• 1/6

What is 3/4 - 1/2?

• 1      1/4
• 4/5
• 1/4
• 5/6