If (1/5) of a rope is cut off, the cut length is (8/5) meters. What is the original length of the rope?
一根绳子剪去它的(1/5)，剪去的长度是(8/5)米，这根绳子原长多少米．
<gadget id="calculator">8 / 5</gadget>
<output>8/5 = around 1.6</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(8/5) / (1/5)</gadget>
<output>8</output>

<result>8</result>