The scale of a drawing is 1:300. The length of the rectangular experimental field in the drawing is 40 cm and the width is 30 cm. What is the actual area of the rectangular experimental field in square meters?
一张图纸的比例尺是1：300，图中长方形实验田长是40厘米，宽是30厘米，这块长方形实验田的实际面积是多少平方米？
<gadget id="calculator">1 / 300</gadget>
<output>1/300 = around 0.003333</output>

<gadget id="calculator">40 / (1/300) / 100</gadget>
<output>120</output>

<gadget id="calculator">120 * 90</gadget>
<output>10_800</output>

<result>10_800</result>