On a drawing with a scale of 1:3000, a certain nursery is measured to be 8 cm long and 3 cm wide. What is the actual size of this nursery in hectares?
在比例尺是1：3000的图纸上，量得某苗圃长8厘米，宽3厘米．这个苗圃的实际面积是多少公顷？
<gadget id="calculator">1 / 3_000</gadget>
<output>1/3_000 = around 0.000333</output>

<gadget id="calculator">8 / (1/3_000) / 100</gadget>
<output>240</output>

<gadget id="calculator">3 / (1/3_000) / 100 / 10_000</gadget>
<output>9/1_000 = around 0.009</output>

<gadget id="calculator">240 * (9/1_000)</gadget>
<output>54/25 = around 2.16</output>

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