If a 7-meter-long rope is folded in half three times, what is the length of each piece?
把7米长的绳子连续对折3次，每份的长是多少米．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">7 * (1/8)</gadget>
<output>7/8 = around 0.875</output>

<result>7/8 = around 0.875</result>