Nick cut a loaf bread into 12 equal slices. His family ate some of the bread and now 5/12 of the loaf is left. Nigel wants to put each of the leftover slices in its own bag. How many bags does Nigel need?

Answer 1

12/12 - 5/12 = ___/12

Answer 2

oops. no math is required. I figured how many slices were eaten...
There were 12 slices, and 5 are left. So, 5 bags needed.