A garment processing factory processes 200 garments in September, which is 1/5 less than that in October. How many fewer pieces were processed in September than in October?
某服装加工厂九月份加工服装200件，比10月份少加工(1/5)．九月份比十月份少加工多少件？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">200 / (4/5)</gadget>
<output>250</output>

<gadget id="calculator">250 - 200</gadget>
<output>50</output>

<result>50</result>