A crayon box has 24 crayons total.  8 crayons are red, 6 crayons are blue, there are 2/3 the number of green crayons as blue crayons, and the rest of the crayons are pink.  How many crayons are pink?
There are 2/3 green crayons * 6 blue crayons = 
<gadget id="calculator">2/3*6</gadget>
<output>4</output>
4 green crayons.
The pink crayons left in the box are 24 crayons total - 8 red - 6 blue - 4 green = 
<gadget id="calculator">24-8-6-4</gadget>
<output>6</output>
6 pink crayons.

<result>6</result>