The vegetable base produced 24,000 tons of vegetables this year, an increase of 20% over last year. How many tons was the output of this vegetable base last year?
蔬菜基地今年生产了2.4万吨蔬菜，比去年增产了2成，去年这个蔬菜基地的产量是多少万吨？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

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

<gadget id="calculator">2.4 / (6/5)</gadget>
<output>2</output>

<result>2</result>