The total wheat output of Xingfu Village last year was 20 million tons, 20% less than the total rice output. How many tons was the total rice output last year?
幸福村去年小麦总产量是2000万吨，比水稻总产量少二成，去年水稻总产量是多少万吨？
<gadget id="calculator">20 / 100</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">2_000 / (4/5)</gadget>
<output>2_500</output>

<result>2_500</result>