Cut a 7-meter-long rope into 9 sections on average, what is the length of each section
把7米长的绳子平均剪成9段，每段的长度是多少
<gadget id="calculator">7 / 9</gadget>
<output>7/9 = around 0.777778</output>

<result>7/9 = around 0.777778</result>