A rectangular orchard is 450 meters long. The width is 200 meters, and an average of 600 fruit trees are planted per hectare. How many fruit trees are planted in this orchard?
一个长方形果园长450米．宽200米，平均每公顷栽600颗果树，这个果园一共栽了多少棵果树？
<gadget id="calculator">200 / 10_000</gadget>
<output>1/50 = around 0.02</output>

<gadget id="calculator">600 * 450 * (1/50)</gadget>
<output>5_400</output>

<result>5_400</result>