2 tractors plow 1.8 hectares in 3 hours, how many hectares are plowed by each tractor per hour?
2台拖拉机3小时耕地1.8公顷，每台每小时耕地多少公顷？
<gadget id="calculator">1.8 / 2 / 3</gadget>
<output>0.3</output>

<result>0.3</result>