A jacket is 90 yuan, and the price of a pair of trousers is 60% of that of a jacket. How much is a jacket more expensive than a pair of trousers?
一件上衣90元，一条裤子价钱是一件上衣的60%，一件上衣比一条裤子贵多少元？
<gadget id="calculator">60 / 100</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">90 * (3/5)</gadget>
<output>54</output>

<gadget id="calculator">90 - 54</gadget>
<output>36</output>

<result>36</result>