The road repair team repaired a section of 800m long road, the full length (2/5) was repaired on the first day, and the full length (3/8) was repaired on the second day. How many meters were repaired in two days?
修路队修一段长800m的公路，第一天修了全长的(2/5)，第二天修了全长的(3/8)．两天一共修了多少米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

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

<gadget id="calculator">(2/5) + (3/8)</gadget>
<output>31/40 = around 0.775</output>

<gadget id="calculator">800 * (31/40)</gadget>
<output>620</output>

<result>620</result>