The road repair team repairs a road, the repaired part is less (1/5) than the rest, and the rest is more (2/5) kilometers than the repaired one, how many kilometers have been repaired?
修路队修一条公路，已修的比剩下的少(1/5)，剩下的比已修的多(2/5)千米，已经修了多少千米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) / (1/5)</gadget>
<output>2</output>

<gadget id="calculator">2 - (2/5)</gadget>
<output>8/5 = around 1.6</output>

<result>8/5 = around 1.6</result>