The price of a pair of shoes is reduced (1/5) to 60 yuan, what is the original price?
一双鞋降价(1/5)后是60元，原价是多少．
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">60 / (4/5)</gadget>
<output>75</output>

<result>75</result>