Last year's green area was 200 square meters, which was less than this year's plan (1/5). How many square meters is the planned green area this year?
去年绿化面积为200平方米，比今年的计划少(1/5)，今年计划的绿化面积是多少平方米？
<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>

<result>250</result>