The current price of a suit is 360 yuan, which is 1/5 cheaper than before. How much is the original price of this suit?
一套西服现售价360元，比原来便宜了(1/5)，这套西服原价多少钱？
<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">360 / (4/5)</gadget>
<output>450</output>

<result>450</result>