A and B jointly repair a section of highway, and when B repairs the full length (2/5), A is more than B (1/8). It is known that A has repaired 210 meters at this time, how many meters is this section of road?
甲乙合修一段公路，乙修了全长的(2/5)时，甲比乙多(1/8)．已知这时甲修了210米，这段公路有多少米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(2/5) + (1/8)</gadget>
<output>21/40 = around 0.525</output>

<gadget id="calculator">210 / (21/40)</gadget>
<output>400</output>

<result>400</result>