The experimental field harvested 2.5 tons of peanuts last year, and this year it has increased by 20% compared to last year. How many tons of peanuts are harvested this year?
试验田去年收花生2.5吨，今年比去年增产二成，今年收花生多少吨．
<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">2.5 * (6/5)</gadget>
<output>3</output>

<result>3</result>