A 3-meter-long iron wire is divided into 7 parts on average, how much is 3 meters in each part
3米长的铁丝平均分成7份，每份是3米的多少
<gadget id="calculator">1 / 7</gadget>
<output>1/7 = around 0.142857</output>

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