The distance between A and B is 420 kilometers. A car travels the whole distance (4/5), how many kilometers does it travel?
甲乙两地相距420千米，一辆汽车行驶了全程的(4/5)，行驶了多少千米？
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">420 * (4/5)</gadget>
<output>336</output>

<result>336</result>