Question

You have 4/6 cup of cornmeal in your cupboard. A recipe for 2/5 muffins calls for cup of cornmeal. How much cornmeal would you have left if you made the muffins?

Answer 1

The recipe calls for 2/5 cup and you have 4/6 cup?
If so, you need to subtract 4/6 - 2/5.
4/6 = 2/3
2/3 - 2/5 =
You need a common denominator which is 15,
(2/3)*(5/5) - (2/5)*(3/3) =
10/15 - 6/15 =
4/15
You have 4/15 cup left.

Answer 2

4/15