Divide a 1-meter-long rope into 7 sections on average. What is the length of the fourth section in the total length of the rope?
把1米长的绳子平均分成7段，第四段的长度占这根绳子总长度的多少
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

<result>1/7 = around 0.142857</result>