Joan wants to visit her family who live 480 miles away.  If she drives at a rate of 60 mph and takes a lunch break taking 30 minutes, and 2 bathroom breaks taking 15 minutes each, how many hours did it take her to get there?
The driving time is 480/60= 
<gadget id="calculator">480/60</gadget>
<output>8</output>
8 hours.
The time for breaks was 30+15+15=
<gadget id="calculator">30+15+15</gadget>
<output>60</output>
60 minutes.
So she spent 60/60=
<gadget id="calculator">60/60</gadget>
<output>1</output>
1 hour for rest stops.
So it took her 8+1=
<gadget id="calculator">8+1</gadget>
<output>9</output>
9 hours.

<result>9</result>