72 cm long iron wire is used to form a rectangle. The aspect ratio of the rectangle is 5:3. What is the area of the rectangle in square centimeters?
用72厘米长的铁丝围成一个长方形，长方形的长宽比是5：3，这个长方形的面积是多少平方厘米？
<gadget id="calculator">72 / 2</gadget>
<output>36</output>

<gadget id="calculator">5 + 3</gadget>
<output>8</output>

<gadget id="calculator">5 / 8</gadget>
<output>5/8 = around 0.625</output>

<gadget id="calculator">36 * (5/8)</gadget>
<output>45/2 = around 22.5</output>

<gadget id="calculator">36 - (45/2)</gadget>
<output>27/2 = around 13.5</output>

<gadget id="calculator">(45/2) * (27/2)</gadget>
<output>1_215/4 = around 303.75</output>

<result>1_215/4 = around 303.75</result>