The original price of a commodity is 180 yuan, and the price is now reduced (1/4), how much is the current price?
一种商品原价180元，现降价(1/4)销售，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">180 * (3/4)</gadget>
<output>135</output>

<result>135</result>