The loading capacity of the Shifeng small truck is 2.4 tons, and the loading capacity of the Jiefang large truck is 2.5 times that of the Shifeng small truck. How many tons can the two trucks transport together?
时风牌小货车的载重量是2.4吨，解放牌大货车的载重量是时风牌小货车的2.5倍，两辆货车一齐运一次货，一共可以运货多少吨？
<gadget id="calculator">2.4 * 2.5</gadget>
<output>6</output>

<gadget id="calculator">6 + 2.4</gadget>
<output>8.4</output>

<result>8.4</result>