a whole pizza is cut in twelfths if i eat 1/2 and my friend eats 1/3 what is the fractoin left of the pizza?

-3/4

So, you eat 6/12 of a pizza and your friend eats 4/12

6/12+4/12=10/12

12/12-10/12=2/12

You have 2/12 of the pizza left, or 1/6 of it left

Nope

sure thats right