Divide a 2-meter-long iron wire into 5 sections on average, (2/5) meters account for how much of the total length.
把一根长2米的铁丝平均分成5段，(2/5)米占全长的多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>