To build a road (4/5) kilometers long, (2/25) kilometers were built on the first day, and (1/10) kilometers were repaired on the second day, how many kilometers have been repaired?
修一条(4/5)千米长的路，第一天修了(2/25)千米，第二天修了(1/10)千米，已经修了多少千米？
<gadget id="calculator">2 / 25</gadget>
<output>2/25 = around 0.08</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(2/25) + (1/10)</gadget>
<output>9/50 = around 0.18</output>

<result>9/50 = around 0.18</result>