A rectangular wheat field is 500 meters long and 400 meters wide, with a total yield of 120 tons of wheat. How many tons of wheat are produced per hectare?
一块长方形麦田长500米，宽400米，共产小麦120吨．平均每公顷产小麦多少吨？
<gadget id="calculator">400 / 10_000</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">500 * (1/25)</gadget>
<output>20</output>

<gadget id="calculator">120 / 20</gadget>
<output>6</output>

<result>6</result>