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=
<gadget id="calculator">48/4</gadget>
<output>12</output>
12 crayons
48-12=
<gadget id="calculator">48-12</gadget>
<output>36</output>
36 crayons remain.
Joe takes 36/2=
<gadget id="calculator">36/2</gadget>
<output>18</output>
18 crayons
36-18=
<gadget id="calculator">36-18</gadget>
<output>18</output>
18 crayons left.

<result>18</result>