The farm harvested 1.5 million tons of wheat this year, an increase of 20% over last year. How many tons of wheat did this year increase compared to last year?
农场今年收小麦150万吨，比去年增产20%，今年比去年增产小麦多少万吨？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 + (1/5)</gadget>
<output>6/5 = around 1.2</output>

<gadget id="calculator">150 / (6/5)</gadget>
<output>125</output>

<gadget id="calculator">150 - 125</gadget>
<output>25</output>

<result>25</result>