Divide a 3-meter-long iron wire into 4 equal sections, how much of the total length does each section occupy?
把3米长的一根铁丝平均分成4段，每段占全长的多少．
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>