Please answer the following question by reasoning step-by-step.
There are 48 crayons in the box. Kiley takes 1/4 of them away. Joe takes away half of the remaining crayons, how many crayons are left?

18
Kiley takes 48 / 4 = 12 crayons.

48 - 12 = 36 crayons remain.

Joe takes 36 / 2 = 18 crayons.

36 - 18 = 18 crayons left.

.

Final answer: 18