The original price of a coat is 200 yuan. After the price is reduced (1/10), how much is it cheaper than the original price?
一件上衣原价是200元，降价(1/10)后，比原价便宜多少钱？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">200 * (1/10)</gadget>
<output>20</output>

<result>20</result>