The current price of a piece of clothing is 150 yuan, which is 1/5 cheaper than the original price. What is the original price?
一件衣服现价150元，比原价便宜了(1/5)，原价是多少元．
<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">150 / (4/5)</gadget>
<output>375/2 = around 187.5</output>

<result>375/2 = around 187.5</result>