Adding/Subtracting Fractions

• 12

• 24

• 8

• 16

Blake had 2/3 of a cake left after his birthday party. His sister, Bethany, ate 1/6 of the leftover cake. How much cake is left?

• 1/6

• 1/9

• 3/5

• 1/2

4/5 - 1/20 = 

• 0
• 20/15
• 3/15
• 15/20

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

Aden is helping his dad paint his house. They mixed 5/9 gallons of white paint and 1/6 gallons of blue paint. How many gallons was the mixture in all?

• 6/18 gallons

• 13/18 gallons

• 4/5 gallons

• 1/6 gallons