The factory processes a batch of parts. If it processes 207 parts per day, it can be completed in 11 days. If it wants to be completed 2 days ahead of schedule, how many parts should be processed per day?
工厂加工一批零件，若每天加工207个，11天可完成，如果要想提前2天完成，每天应加工多少个？
<gadget id="calculator">11 - 2</gadget>
<output>9</output>

<gadget id="calculator">11 / 9</gadget>
<output>11/9 = around 1.222222</output>

<gadget id="calculator">207 * (11/9)</gadget>
<output>253</output>

<result>253</result>