To build a road, the full length (1/3) was built on the first day, and 310 meters on the second day. At this time, the ratio of the number of meters already repaired to the remaining meters is 2:3. How long is this road in meters?
修一条公路，第一天修了全长的(1/3)，第二天修了310米，这时已经修的和剩下的米数比是2：3，这段公路长多少米？
<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

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

<gadget id="calculator">310 / (1/15)</gadget>
<output>4_650</output>

<result>4_650</result>