After folding a rope in half, fold it in half again twice, how much does each piece of rope occupy in the total length of the rope
把一根绳子对折后，再对折2次，每段绳子占绳子总长的多少
<gadget id="calculator">2 * 2 * 2</gadget>
<output>8</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<result>1/8 = around 0.125</result>