(3/5) of a wire is 18 meters, how many meters is this wire long?
一根铁丝的(3/5)是18米，这跟铁丝长多少米．
<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">18 / (3/5)</gadget>
<output>30</output>

<result>30</result>