Uncle Li’s family produced 500 kilograms of walnuts last year, and this year’s production has increased by 20%. How many kilograms is this year’s output?
李大伯家去年产核桃500千克，今年增产二成，今年产量是多少千克？
<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">500 * (6/5)</gadget>
<output>600</output>

<result>600</result>