The length of (6/7) of a rope is 36 meters, how many meters is the length of this rope?
一根绳子的(6/7)是36米，这根绳子长多少米．
<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">36 / (6/7)</gadget>
<output>42</output>

<result>42</result>