There is a rectangular vegetable field with a length of 600 meters and a ratio of length to width of 3:2. What is the area?
有一块长方形菜地，长600米，长和宽的比是3：2，面积多少？
<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">600 * (2/3)</gadget>
<output>400</output>

<gadget id="calculator">600 * 400</gadget>
<output>240_000</output>

<result>240_000</result>