Cut a 3-meter-long rope into small pieces of the same length, and cut it 7 times in total.
把一根3米长的绳子截成每段一样长的小段，共截了7次，每段长多少米，每段是这根绳子长的((())/(()))．
<gadget id="calculator">7 + 1</gadget>
<output>8</output>

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

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

<gadget id="calculator">3 / 8</gadget>
<output>3/8 = around 0.375</output>

<result>3/8 = around 0.375</result>