The road repair team repaired a section of road. The number of meters repaired a few days ago was the remaining (3/5), and today another 42 meters were repaired. At this time, the number of meters repaired is 80% of the remaining. How long is this road in meters? ．
修路队修一段公路，前几天修的米数是剩下的(3/5)，今天又修了42米，这时以修的米数是剩下的80%，这段公路长多少米．
<gadget id="calculator">5 / 4</gadget>
<output>5/4 = around 1.25</output>

<gadget id="calculator">1 + (5/4)</gadget>
<output>9/4 = around 2.25</output>

<gadget id="calculator">1 / (9/4)</gadget>
<output>4/9 = around 0.444444</output>

<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">1 + (5/3)</gadget>
<output>8/3 = around 2.666667</output>

<gadget id="calculator">1 / (8/3)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">(4/9) - (3/8)</gadget>
<output>5/72 = around 0.069444</output>

<gadget id="calculator">42 / (5/72)</gadget>
<output>3_024/5 = around 604.8</output>

<result>3_024/5 = around 604.8</result>