Adding & Subtracting Fractions

The number on the top of a fraction is called what?

• numerator
• denominator
• fractionator
• equivalent

• 5/14
• 3/7
• 5/7
• 5/14

• 3/8
• 3/16
• 1/8
• 2/8

2/12 + 1/12 + 3/12 + 1/12 + 4/12 =

• 8/12
• 1
• 11/12
• 10/12

Tags

CCSS.4.NF.B.3C

CCSS.4.NF.B.3D

Kyleigh made a giant cookie to eat for lunch. She ate 2/5 of it and felt sick.  She gave the rest of the giant cookie to Noelle.  How much of the cookie did Noelle have? 

• 4/5
• 1/5
• 3/5
• 5/5

Tags

CCSS.5.NF.A.1

CCSS.5.NF.A.2

Compute leaving answer in simplest form: 9/12 + 3/12

• 12/2
• 1
• 12
• 1/2

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

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

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

• 30
• 11
• 6
• 5

What is the least common denominator you could use to subtract 1/3 and 1/4?

• 3
• 4
• 24
• 12