The ratio of length to width of a rectangle is 5:3, and its known width is 2.4 meters. What is its area?
一个长方形的长与宽的比是5：3，已知宽是2.4米，它的面积是多少？
<gadget id="calculator">5 / 3</gadget>
<output>5/3 = around 1.666667</output>

<gadget id="calculator">2.4 * (5/3) * 2.4</gadget>
<output>9.6</output>

<result>9.6</result>