Divide (4/5) meters of iron wire into 4 parts on average, how many meters each part is, and each part accounts for ((())/(())) of the total length.
把(4/5)米铁丝平均分成4份，每份长多少米，每份占全长的((())/(()))．
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(4/5) / 4</gadget>
<output>1/5 = around 0.2</output>

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