There is a 10% discount on clothes in Lantian shopping mall. My mother bought a top and spent 108 yuan. How much did this top cost?
蓝天商场服装打九折，妈妈买了一件上衣，花了108元钱，这件上衣原来卖多少元钱？
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">108 / (9/10)</gadget>
<output>120</output>

<result>120</result>