What is the area of a rectangular orchard 2 kilometers long and 1500 meters wide?
一个长2千米，宽1500米的长方形果园，面积是多少公顷．
<gadget id="calculator">1_500 / 10_000</gadget>
<output>3/20 = around 0.15</output>

<gadget id="calculator">2 * 1_000 * (3/20)</gadget>
<output>300</output>

<result>300</result>