24 cm long iron wire surrounds a rectangle, the ratio of length to width is 2:1, what is the area of the rectangle?
用24厘米长的铁丝围一个长方形，长和宽的比是2：1，这个长方形的面积是多少？
<gadget id="calculator">24 / 2</gadget>
<output>12</output>

<gadget id="calculator">2 + 1</gadget>
<output>3</output>

<gadget id="calculator">2 / 3</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">12 * (2/3)</gadget>
<output>8</output>

<gadget id="calculator">12 - 8</gadget>
<output>4</output>

<gadget id="calculator">8 * 4</gadget>
<output>32</output>

<result>32</result>