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?
Kiley takes 48/4=<<48/4=12>>12 crayons
48-12=<<48-12=36>>36 crayons remain
Joe takes 36/2=<<36/2=18>>18 crayons
36-18=<<36-18=18>>18 crayons left
#### 18