Divide a 3-meter-long iron wire into 5 parts on average, what is the length of each part accounting for the total length in meters?
把3米长的铁丝平均分为5份，每份占全长的份长为多少米．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 / (1/5)</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>