Question

A group orders 3 large veggie pizzas. Each slice represents 1/8 of the entire pizza. The group eats 3/4 of the pizza. How many slices of pizza are left? Justify your answer.

Answer 1

The first step is to calculate the total number of pizza slices there are.

We know each slice is 1/8 of the pizza.  (think of 1/8 as 1 out of 8 pieces)
This means each pizza has 8 slices. 
There are 3 pizzas so there are 8 x 3 = 24 slices total


Next we want to figure how many slices of pizza they ate which will help us figure out how many are left.

They ate 3/4 of the pizza, so in other words only 1/4 of the pizza is left.


In order to figure out how many slices are left, all we need to do is find out what 1/4 of the total number of slices are.

# of slices left = Total number of slices x 1/4 (1/4 of the pizza is left)

# of slices left = 24 x 1/4 = 24÷4 = 6

This means there are 6 slices of pizza left.