An engineering team repaired a road, and repaired 150m in the first week, and repaired the full length (1/3) in the second week, leaving 250m to be completed. How long is this road in meters?
一个工程队修一条路，第一周修了150m，第二周修了全长的(1/3)，还剩下250m没修完．这条道路全长多少m？
<gadget id="calculator">150 + 250</gadget>
<output>400</output>

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

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">400 / (2/3)</gadget>
<output>600</output>

<result>600</result>