Cut the 5m long rope into 7 sections on average, how many meters is each section, and each section is ((())/(())) of this rope.
把5m长的绳子平均剪成7段，每段长多少m，每段是这条绳子的((())/(()))．
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">1 / (1/7)</gadget>
<output>7</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<result>5/7 = around 0.714286</result>