Dongxing Garment Factory produces a batch of children's clothing, plans to produce 255 sets per day, and completes the task within 30 days. Due to the labor competition, the task was actually completed in only 25 days. How many more sets of children's clothing are actually produced per day than the original plan?
东兴服装厂生产一批童装，计划每天生产255套，30天完成任务．由于开展劳动竞赛，实际只用25天就完成了任务，实际每天比原计划多生产多少套童装？
<gadget id="calculator">30 / 25</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">255 * (6/5)</gadget>
<output>306</output>

<gadget id="calculator">306 - 255</gadget>
<output>51</output>

<result>51</result>