A shirt is 108 yuan after a 10% discount. What is the original price of this shirt?
一件衬衣打九折后是108元，这件衬衣原价是多少元．
<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>