The promotional activity in the store is 20% off the original price and then 30% off. The current price of a piece of clothing is 56 yuan. How much is the original price of this piece of clothing?
商店促销活动是在原价的基础上八折后再打七折，一件衣服现价是56元，这件衣服原价是多少元？
<gadget id="calculator">70 / 100</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">56 / (7/10) / (4/5)</gadget>
<output>100</output>

<result>100</result>