Question

Mr Walton ordered 12 pizzas,for the art class celebration one fourth of the pizza had only mushrooms. how many of the pizza has only mushrooms

Answer 1

3 out of the 12. if you set it up as a proportion it  should be 1 over 4 and x over 12 cross multiply and divide.  

Answer 2

You would do 12 divided by 1/4=3
So your answer is 3 pizzas