The price of a certain brand of clothing is 900 yuan, which is cheaper than the original price (1/10), how much cheaper than the original price?
某品牌服装售价900元，比原价便宜了(1/10)，比原价便宜了多少元？
<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 - (1/10)</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">900 / (9/10)</gadget>
<output>1_000</output>

<gadget id="calculator">1_000 - 900</gadget>
<output>100</output>

<result>100</result>