The original price of a product is 30 yuan. In order to promote sales, the price is first reduced (1/5), and then the price is raised (1/6). How much is the current price?
一件商品原价30元，为了促销，先降价(1/5)，再提价(1/6)，现价多少元？
<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">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 + (1/6)</gadget>
<output>7/6 = around 1.166667</output>

<gadget id="calculator">30 * (4/5) * (7/6)</gadget>
<output>28</output>

<result>28</result>