Hefei Road and Bridge Company repairs a section of road, the ratio of the repaired length to the remaining length is 2:3, and the remaining length is 400 meters less than the total length (2/3). How long is this road in meters?
合肥路桥公司修一段路，已修的长度与剩下的长度的比是2：3，剩下的长度比全长的(2/3)少400米．这段路全长多少米？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">(2/3) - (3/5)</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">400 / (1/15)</gadget>
<output>6_000</output>

<result>6_000</result>