Xiaohua spent 54 yuan to buy a T-shirt with a 10% discount, what is the original price of the T-shirt?
小华花54元买了一件9折的T恤衫，则T恤衫的原价是多少元．
<gadget id="calculator">90 / 100</gadget>
<output>9/10 = around 0.9</output>

<gadget id="calculator">54 / (9/10)</gadget>
<output>60</output>

<result>60</result>