The original price of a suit is 180 yuan. Now the price is reduced (1/5). What is the current price?
一件西服原价180元，现在降价(1/5)，现在的价格是多少元．
<gadget id="calculator">1 / 5</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">180 * (4/5)</gadget>
<output>144</output>

<result>144</result>