Question

Mrs. Storz has decide to give a surprise test on multiplying fractions to her class. One of the problems stated that there were 4 3/7 pizza pies left over in the fridge. In the middle of the night, Mrs. Storz was really hungry and since she loved pizza, she at 2/3 of the pizza left in the fridge. How much pizza did Mrs. Storz eat?

Answer 1

Answer: She ate $2\dfrac{19}{21}$ of the pizza pies.

Step-by-step explanation:

Pizza pizza pies left = $4\dfrac37=\dfrac{7\times4+3}{7}=\dfrac{28+3}{7}$

$=\dfrac{31}{7}$

In the middle of the night, Mrs. Storz ate $\dfrac23$ of pizza.

Pizza she ate = $\dfrac{31}{7}\times\dfrac23=\dfrac{62}{21}=2\dfrac{19}{21}$

Hence, she ate $2\dfrac{19}{21}$ of the pizza pies.