Fraction Review Quiz

What is the LCD of 1/5 and 2/3?

• 30

• 15

• 6

• 10

What must you do first in order to add or subtract fractions with unlike denominators?

• add the numerators
• add the denominators
• find a common denominator
• find a common numerator

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

Add the fractions. Simplify if needed.

• 60

• 30

• 24

• 120

Add the mixed numbers vertically. Simplify if needed.

Fill in the blank in order to create an equivalent fraction.
1/2 = __ /8

• 2
• 4
• 6
• 8

8/9 - 1/3 = 

• 7/6
• 5/9
• 2/3
• 8/27

• 1/12
• 1
• 2/35
• 23/25

What number could be a common denominator for these three fractions?
1/2   and   1/3   and   1/4

• 9
• 8
• 12
• 6