Eating fractions of pie, pizza and cake
This task is about adding and subtracting fractions.
a) Petra ate two-fifths (2/5 ) of a pizza and Sarah ate one-fifth (1/5 ). Show how to work out how much pizza they ate altogether.
Answer: ⅗ of the pizza
b) Lima and Paul each had the same sized cake. Lima ate four-fifths (4/5 ) of his cake and Paul ate three-fifths ( ) of his cake. Show how to work out how much cake they ate altogether.
⅘+⅗=1 and 2/5
Answer: Lima and Paul ate 1 and ⅔ of cake.
c) Bill ate one-fifth (1/5) of a whole apple pie. Show how to work out how much pie was left.
5/5 - 1/5= 4/5
Answer: ⅘ of the pie is left.
d) Andrew started with one and a half pizzas (1 1/2 ) and ate three-quarters (3/4 ) of a whole pizza. Show how to work out how much pizza is left.
Answer: ¾ of the pizza is left.