Use a 1.8-meter-long iron wire to make a rectangle with a ratio of length to width of 3:2. If it is drawn on a drawing with a scale of 1:9, what is the area of the rectangle on the drawing?
用1.8米长的铁丝做成长和宽之间比为3：2的长方形，如果把它画在比例尺是1：9的图纸上，那么这个长方形的图纸上的面积是多少？
<gadget id="calculator">100 / 2</gadget>
<output>50</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">1 / 9</gadget>
<output>1/9 = around 0.111111</output>

<gadget id="calculator">1.8 * 50</gadget>
<output>90</output>

<gadget id="calculator">1.8 * 50 * (3/5)</gadget>
<output>54</output>

<gadget id="calculator">90 - 54</gadget>
<output>36</output>

<gadget id="calculator">1.8 * 50 * (3/5) * (1/9) * 36 * (1/9)</gadget>
<output>24</output>

<result>24</result>