A road repair team repaired (9/20) kilometers on the first day, (7/20) kilometers on the second day, and (9/20) kilometers on the third day. How many kilometers were repaired in total in three days?
一个修路队第一天修了(9/20)千米，第二天修了(7/20)千米，第三天修了(9/20)千米，三天一共修了多少千米？
<gadget id="calculator">9 / 20</gadget>
<output>9/20 = around 0.45</output>

<gadget id="calculator">7 / 20</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">(9/20) + (7/20) + (9/20)</gadget>
<output>5/4 = around 1.25</output>

<result>5/4 = around 1.25</result>