A project was originally planned to be completed in 25 days, but it was actually completed 5 days ahead of schedule. How much has the working time been shortened?
一项工程原计划25天完成，实际提前了5天完成，工作时间缩短了多少
<gadget id="calculator">5 / 25</gadget>
<output>1/5 = around 0.2</output>

<result>1/5 = around 0.2</result>