The road construction team has built a road, which has been repaired (2/5), and it is exactly 40 kilometers long. How many kilometers is the total length of this road?
修路队修一条公路，已修了(2/5)，正好是40千米，这条公路全长有多少千米？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">40 / (2/5)</gadget>
<output>100</output>

<result>100</result>