Uncle Li produces a batch of parts. Every hour he completes 5 more parts than the total (1/15). He works for 1 hour to complete 50 parts. How many parts should Uncle Li produce in this batch?
李叔叔生产一批零件，毎小时他完成总数的(1/15)还多5个，他工作了1小时正好完成50个，李叔叔生产的这批零件应有多少个？
<gadget id="calculator">50 - 5</gadget>
<output>45</output>

<gadget id="calculator">1 / 15</gadget>
<output>1/15 = around 0.066667</output>

<gadget id="calculator">45 / (1/15)</gadget>
<output>675</output>

<result>675</result>