The original price of a piece of clothing is 1600 yuan, and now the price is reduced by 20%, what is the current price?
一件衣服原价1600元，现在降价20%，现价是多少元？
<gadget id="calculator">20 / 100</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">1_600 * (4/5)</gadget>
<output>1_280</output>

<result>1_280</result>