At a class pizza party each pizza ordered had 2/8 of the pizza left over after the party. In all, 1 1/2 pizzas were left over. How many pizzas were ordered

Simplify 2/8

2/8=1/4

1/4 of all pizzas=1 and 1/2 pizza

convert to improper

1 and 1/2=1+1/2=2/2+1/2=3/2

1/4 of all pizzas=3/2 pizza

times both sides by 4/1

4/4 of all pizzas=12/2 pizza

all pizzas=6pizza

6pizzas were orderd