A package of candy has 3 servings with 120 calories each.  John eats half the package.  How many calories did he eat?
There were 3*120=
<gadget id="calculator">3*120</gadget>
<output>360</output>
360 calories in the package.
So he ate 360/2=
<gadget id="calculator">360/2</gadget>
<output>180</output>
180 calories.

<result>180</result>