The engineering team repaired a section of road. On the first day, it repaired the full length (1/4), on the second day it repaired 150 meters, and on the third day it repaired the full length (3/8), which was just finished. How long is this road in meters?
工程队修一段公路，第一天修了全长的(1/4)，第二天修了150米，第三天修了全长的(3/8)，正好修完．这条路全长多少米？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

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

<gadget id="calculator">1 - (1/4) - (3/8)</gadget>
<output>3/8 = around 0.375</output>

<gadget id="calculator">150 / (3/8)</gadget>
<output>400</output>

<result>400</result>