A kind of clothing, the original price is 135 yuan, the price is now reduced (1/5), how much is the price reduction?
一种服装，原价135元，现降价(1/5)，降价多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">135 * (1/5)</gadget>
<output>27</output>

<result>27</result>