The road repair team repaired a road. On the first day, they repaired 7.4 kilometers, which was 1.6 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7.4千米，比第二天多修了1.6千米，两天共修了多少千米？
<gadget id="calculator">7.4 - 1.6</gadget>
<output>5.8</output>

<gadget id="calculator">7.4 + 5.8</gadget>
<output>13.2</output>

<result>13.2</result>