A piece of iron wire is 60 cm long. Use it to surround a rectangle. It is known that the ratio of the length to the width of the rectangle is 3:2. What is the area of the rectangle?
一段铁丝长60厘米，用它围城一个长方形，已知长方形的长和宽的比是3：2，这个长方形的面积是多少？
<gadget id="calculator">60 / 2</gadget>
<output>30</output>

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

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

<gadget id="calculator">30 * (3/5)</gadget>
<output>18</output>

<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">30 * (2/5)</gadget>
<output>12</output>

<gadget id="calculator">18 * 12</gadget>
<output>216</output>

<result>216</result>