Process a batch of parts, complete 25% of this batch of parts on the first day, and complete 35% of this batch of parts on the second day. There are still 360 parts that have not been processed. How many parts are there in total?
加工一批零件，第一天完成这批零件的25%，第二天完成这批零件的35%，还剩360个零件没加工，这批零件一共多少个？
<gadget id="calculator">25 / 100</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">35 / 100</gadget>
<output>7/20 = around 0.35</output>

<gadget id="calculator">1 - (1/4) - (7/20)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">360 / (2/5)</gadget>
<output>900</output>

<result>900</result>