parallelogram-shaped vegetable field has a base length of 36 meters and a height of 25 meters. This vegetable field harvests 540 kilograms of rapeseed. How many kilograms of rapeseed is harvested on average per square meter?
一块平行四边形菜地，底长36米，高是25米，这块菜地共收油菜540千克，平均每平方米收油菜多少千克？
<gadget id="calculator">36 * 25</gadget>
<output>900</output>

<gadget id="calculator">540 / 900</gadget>
<output>3/5 = around 0.6</output>

<result>3/5 = around 0.6</result>