The original price of a coat is 180 yuan, and now it is sold at a 40% discount. How much is the current price cheaper than the original price?
一件上衣原价是180元，现在打六折出售，现价比原价便宜了多少元．
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">1 - (3/5)</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">180 * (2/5)</gadget>
<output>72</output>

<result>72</result>