After the price of a piece of clothing in the mall has increased by 10%, it is now 198 yuan each. How much is the original price of each piece of clothing?
商场里的一件衣服涨价10%后，现在每件198元，这件衣服每件原价多少元？
<gadget id="calculator">10 / 100</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">1 + (1/10)</gadget>
<output>11/10 = around 1.1</output>

<gadget id="calculator">198 / (11/10)</gadget>
<output>180</output>

<result>180</result>