To build a road, 1/5 of the total length was built on the first day, and 25% of the total length was repaired on the second day, leaving 4.4 kilometers unrepaired. How many kilometers is the total length of this road?
修一条路，第一天修了全长的(1/5)，第二天修了全长的25%，还剩4.4千米没有修，这条路全长多少千米？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/5) + (1/4)</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">1 - (9/20)</gadget>
<output>11/20 = around 0.55</output>

<gadget id="calculator">4.4 / (11/20)</gadget>
<output>8</output>

<result>8</result>