Divide a 3-meter-long iron wire into 7 sections on average, what is the length of each section in m
把3米长的铁丝平均分成7段，每段长是多少m
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<result>3/7 = around 0.428571</result>