Jim ran 16 miles in 2 hours while Frank ran 20 miles in 2 hours. How many more miles did Frank run than Jim in an hour?
Jim ran 16 / 2 = 
<gadget id="calculator">16/2</gadget>
<output>8</output>
8 miles for an hour.
Frank ran 20 / 2 = 
<gadget id="calculator">20/2</gadget>
<output>10</output>
10 miles for an hour.
Frank ran 10 - 8 = 
<gadget id="calculator">10-8</gadget>
<output>2</output>
2 more miles than Jim in an hour.

<result>2</result>