A rope is folded in half 3 times, each section is 1 meter long, what is the total length of the rope in meters?
一根绳子对折3次，每段长1米，原来这根绳子总长是多少米．
<gadget id="calculator">1 / 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">(1/2) * (1/2) * (1/2)</gadget>
<output>1/8 = around 0.125</output>

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

<result>8</result>