An engineering team plans to build a road. On the first day, it repairs the full length (1/5), and on the second day it repairs the rest (1/3). At this time, there are still 800 meters left to be repaired. How long is this road in meters?
某工程队计划修一条路，第一天修了全长的(1/5)，第二天修了余下的(1/3)，这时还剩800米未修，这条路长多少米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

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

<gadget id="calculator">(4/5) * (1/3)</gadget>
<output>4/15 = around 0.266667</output>

<gadget id="calculator">1 - (1/5) - (4/15)</gadget>
<output>8/15 = around 0.533333</output>

<gadget id="calculator">800 / (8/15)</gadget>
<output>1_500</output>

<result>1_500</result>