A 5-meter-long rope is cut into 7 pieces on average. What is the length of each piece?
5米长的绳子，平均截成7段，每段长多少．
<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

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