A professional grain household harvests 72,000 kilograms of wheat in a field that is 400 meters long and 300 meters wide. What is the average yield per hectare?
一个粮食专业户在一块长400米，宽300米的地里收小麦72000千克，平均每公顷的产量是多少千克？
<gadget id="calculator">300 / 10_000</gadget>
<output>3/100 = around 0.03</output>

<gadget id="calculator">400 * (3/100)</gadget>
<output>12</output>

<gadget id="calculator">72_000 / 12</gadget>
<output>6_000</output>

<result>6_000</result>