Five friends each ate 2/12 of a pizza .What fraction of the pizza Is left?

Answer 1

The pizza is 12/12, meaning it has 12 total slices.
If 5 people each had 2 slices (this is what 2/12 means) then:

5* (2/12)= 0.83= 10/12

10/12 is how much pizza was eaten.
To figure out how much is left, subtract how much was eaten from the total.

(12/12)- (10/12)= 2/12