A small cement factory plans to complete a batch of tasks within 24 days, and should produce 45 tons of cement per day. After improving the technology, the daily production is 15 tons more than the original plan, so how many days earlier will it be completed?
某小水泥厂计划24天完成一批任务，每天应生产45吨水泥．改进技术后，每天比原计划多生产15吨，这样提前几天完成？
<gadget id="calculator">24 * 45</gadget>
<output>1_080</output>

<gadget id="calculator">45 + 15</gadget>
<output>60</output>

<gadget id="calculator">1_080 / 60</gadget>
<output>18</output>

<gadget id="calculator">24 - 18</gadget>
<output>6</output>

<result>6</result>