A farm planned to complete the harvesting task in 28 days, but because it harvested 7 hectares more every day, the task was completed in 18 days. How many hectares are actually harvested per day?
一个农场计划28天完成收割任务，由于每天多收割7公顷，结果18天就完成了任务．实际每天收割多少公顷？
<gadget id="calculator">18 * 7</gadget>
<output>126</output>

<gadget id="calculator">28 - 18</gadget>
<output>10</output>

<gadget id="calculator">126 / 10</gadget>
<output>63/5 = around 12.6</output>

<gadget id="calculator">(63/5) + 7</gadget>
<output>98/5 = around 19.6</output>

<result>98/5 = around 19.6</result>