Question

Porter's family ordered 3 pizzas. They ate 1 5/12 of the pizzas. How much pizza is left?

Answer 1

3 can be re written as 2 and 12/12. So you have 2 and 2/12 - 1 and 5/12.

2-1 is 1. 12/12 - 5/12 is 7/12.

1 and 7/12 pizza is left.