In the first half of 2011, a TV factory sold 2 million LED backlight LCD TVs, which was 1/5 less than in the second half of the year. How many thousands of LED backlight LCD TVs were sold in the whole year?
某电视机厂2011年上半年LED背光源液晶电视销售200万台，比下半年少(1/5)，全年共销售LED背光源液晶电视多少万台？
<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>450</output>

<result>450</result>