65% of a rope is used up, and there are 14 meters left. How many meters is the rope originally?
一根绳子用去它的65%，还剩下14米，这根绳子原来有多少米．
<gadget id="calculator">65 / 100</gadget>
<output>13/20 = around 0.65</output>

<gadget id="calculator">1 - (13/20)</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">14 / (7/20)</gadget>
<output>40</output>

<result>40</result>