The road repair team repaired a road. On the first day, they repaired 3.4 kilometers, which was 0.48 kilometers more than the second day. How many kilometers were repaired in two days?
修路队修一条公路，第一天修了3.4千米，比第二天多修了0.48千米，两天共修了多少千米？
<gadget id="calculator">3.4 + 0.48</gadget>
<output>3.88</output>

<gadget id="calculator">3.4 + 3.88</gadget>
<output>7.28</output>

<result>7.28</result>