The distance between A and B is 420 kilometers. A car travels the whole distance (3/4). 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(3/4)，行驶了多少千米？
<gadget id="calculator">3 / 4</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">420 * (3/4)</gadget>
<output>315</output>

<result>315</result>