A five-star red flag is reduced to a ratio of 1:30 to obtain a rectangle with a length of 6 cm and a width of 4 cm. What is the actual area of the five-star red flag in square meters?
一面五星红旗，将它按照1：30的比缩小后，得到的是一个长方形，长是6厘米，宽是4厘米，这面五星红旗的实际面积是多少平方米．
<gadget id="calculator">1 / 30</gadget>
<output>1/30 = around 0.033333</output>

<gadget id="calculator">6 / (1/30) / 100</gadget>
<output>9/5 = around 1.8</output>

<gadget id="calculator">4 / (1/30) / 100</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(9/5) * (6/5)</gadget>
<output>54/25 = around 2.16</output>

<result>54/25 = around 2.16</result>