worker completes a batch of parts in 3 days, (1/3) of the total number is completed on the first day, (1/4) of the total number is completed on the second day, and 25 pieces are completed on the third day. How many parts are there in this batch?
一个工人3天加工完一批零件，第1天完成了总数的(1/3)，第2天完成了总数的(1/4)，第3天完成了25个．这批零件有多少个？
<gadget id="calculator">1 / 3</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/3) - (1/4)</gadget>
<output>5/12 = around 0.416667</output>

<gadget id="calculator">25 / (5/12)</gadget>
<output>60</output>

<result>60</result>