The original price of a TV is 2300 Qi, and now the price is reduced (1/5), how much is the current price?
一种电视原价2300亓，现在降价(1/5)，现有的价格是多少元？
<gadget id="calculator">1 / 5</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">2_300 * (4/5)</gadget>
<output>1_840</output>

<result>1_840</result>