What is the area of a rectangle whose circumference is 36 cm and whose width is 1/5 of its length?
一个周长是36cm，宽是长的(1/5)的长方形的面积是多少平方分米．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) * 2</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">2 + (2/5)</gadget>
<output>12/5 = around 2.4</output>

<gadget id="calculator">3.6 / (12/5)</gadget>
<output>1.5</output>

<gadget id="calculator">1.5 * 1.5 * (1/5)</gadget>
<output>0.45</output>

<result>0.45</result>