If the price of a product is 60 yuan after a 20% price increase, what is the original price of the product?
一商品涨价20%后是60元，则该商品原价为多少元
<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">60 / (6/5)</gadget>
<output>50</output>

<result>50</result>