Bob buys 50 feet of rope.  He uses a 5th of it to make a small piece of art.  He takes the rest and gives half of it to the friend.  After that, he cuts 2-foot sections.  How many sections does he get?
He cuts off 50/5=
<gadget id="calculator">50/5</gadget>
<output>10</output>
10 feet.
So he has 50-10=
<gadget id="calculator">50-10</gadget>
<output>40</output>
40 feet left.
He gives half away which means he has 40/2=
<gadget id="calculator">40/2</gadget>
<output>20</output>
20 feet.
So he has 20/2=
<gadget id="calculator">20/2</gadget>
<output>10</output>
10 sections.

<result>10</result>