Use a 40 cm aluminum wire to make a rectangle with a ratio of length to width of 3:2. What is the area of the rectangle?
用40厘米的铝丝做成长和宽的比为3：2的长方形，这个长方形的面积是多少？
<gadget id="calculator">40 / 2</gadget>
<output>20</output>

<gadget id="calculator">2 + 3</gadget>
<output>5</output>

<gadget id="calculator">3 / 5</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">20 * (3/5)</gadget>
<output>12</output>

<gadget id="calculator">20 - 12</gadget>
<output>8</output>

<gadget id="calculator">12 * 8</gadget>
<output>96</output>

<result>96</result>