The road repair team repaired a road, a total of 5.7 kilometers in the first 3 days, and a total of 6.9 kilometers in the next 4 days. How many kilometers does this road repair team repair on average every day this week?
修路队修一条公路，前3天共修了5.7千米，后4天共修了6.9千米．这个修路队这一周平均每天修多少千米？
<gadget id="calculator">5.7 + 6.9</gadget>
<output>12.6</output>

<gadget id="calculator">3 + 4</gadget>
<output>7</output>

<gadget id="calculator">12.6 / 7</gadget>
<output>1.8</output>

<result>1.8</result>