Some friends are sharing some pizzas. They buy 3 pizzas altogether. John eats 1 1/2 pizza, Peter eats 2/3 of the pizza and Kellie eats 4/5 of a pizza. How much pizza is not eaten?

1 Answer
Nov 14, 2016

Answer:

#1/30# of a pizza was not eaten

Explanation:

Amount of pizzas eaten:
#color(white)("XXX")1 1/2+2/3+4/5#

(converting to common denominator)
#color(white)("XXX")=45/30 +20/30+24/30#

#color(white)("XXX")=89/30#

Amount of pizza bought:
#color(white)("XXX")3 = 90/30#

Amount of pizza not eaten
#color(white)("XXX")90/30-89/30=1/30#