The current price of a suit is 180 yuan, which is 1/5 lower than the original price. How much is the original price?
一件西服现价180元，比原来降低了(1/5)，原来的价格是多少元？
<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">180 / (4/5)</gadget>
<output>225</output>

<result>225</result>