job started on April 1st and was originally scheduled to be completed in one month, but the scheduled task was actually completed on April 25th. If we continue to work at this speed until April 30th, how much will be overfulfilled?
一项工作，4月1日开工，原定一个月完成，实际4月25日完成预定任务，按这种速度继续工作到4月30日，将超额完成多少．
<gadget id="calculator">1 / 25</gadget>
<output>1/25 = around 0.04</output>

<gadget id="calculator">(1/25) * 30</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">(6/5) - 1</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">(1/5) / 1</gadget>
<output>1/5 = around 0.2</output>

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