The original price of a piece of clothing is 45 yuan. After a 20% discount, what is the current price?
一件衣服原价是45元，打八折后，现在价钱是多少元．
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">45 * (4/5)</gadget>
<output>36</output>

<result>36</result>