John manages to run 15 mph for his whole 5-mile race.  The next fastest guy ran the race in 23 minutes.  How many minutes did he win the race by?
He runs the race in 5/15=1/3 of an hour.
So he runs the race in 60/3=
<gadget id="calculator">60/3</gadget>
<output>20</output>
20 minutes.
That means he beat the next fastest guy by 23-20=
<gadget id="calculator">23-20</gadget>
<output>3</output>
3 minutes.

<result>3</result>