Question

Kate made a pan of cookies. She gave 1/4 of the pan to Maggie and 2/5 of the pan to Scott. How much was left over?

Answer 1

3/10 pan left over

Explanation:

Assume that the pan started out full of cookies. After Kate's gift tto Maggie there are (1 - 1/4) of the pan left over, or 3/4 of the pan left over. Kate gives 2/5 of this remaining 3/4 pan to Scott: (2/5)(3/4) = 3/10 pan left over.