The selling price of a shirt is 60 yuan (2/5) lower than the original price. How much is the original price?
一件衬衫售价比原价降低(2/5)后是60元，原价多少元？
<gadget id="calculator">2 / 5</gadget>
<output>2/5 = around 0.4</output>

<gadget id="calculator">1 - (2/5)</gadget>
<output>3/5 = around 0.6</output>

<gadget id="calculator">60 / (3/5)</gadget>
<output>100</output>

<result>100</result>