After a price reduction of 20%, the price of a kind of clothing is 144 yuan. How much is the original price of this kind of clothing.
一种服装降价20%后，售价是144元．这种服装原价是多少元．
<gadget id="calculator">20 / 100</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">144 / (4/5)</gadget>
<output>180</output>

<result>180</result>