The original price of a coat is 28 yuan, and now the price is reduced (1/4), how much is the current price?
一件上衣原价28元，现在降价(1/4)，现价多少元？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">28 * (3/4)</gadget>
<output>21</output>

<result>21</result>