A triangular field has a base length of 90 meters and a height of 80 meters. Rapeseed is planted in this field, and a total of 2,430 kilograms of rapeseed is harvested. How many kilograms of rapeseed are harvested on average per hectare?
一个三角形田，底长90米，高80米．在这块田种上油菜，共收油菜籽2430千克，平均每公顷收油菜籽多少千克？
<gadget id="calculator">80 / 2 / 10_000</gadget>
<output>1/250 = around 0.004</output>

<gadget id="calculator">90 * (1/250)</gadget>
<output>9/25 = around 0.36</output>

<gadget id="calculator">2_430 / (9/25)</gadget>
<output>6_750</output>

<result>6_750</result>