A tractor plows a field of 5 hectares in 12 days, how many hectares are plowed per day on average.
拖拉机耕一块5公顷的地，12天耕完，平均每天耕多少公顷．
<gadget id="calculator">5 / 12</gadget>
<output>5/12 = around 0.416667</output>

<result>5/12 = around 0.416667</result>