The price of a top is 135 yuan after a 25% discount. What is the original price of this top?
一件上衣七五折后售价是135元，这件上衣的原价是多少元？
<gadget id="calculator">75 / 100</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">135 / (3/4)</gadget>
<output>180</output>

<result>180</result>