The original price of a kind of clothing is 170 yuan, and now the price is reduced (1/5). How much is the price now?
一种服装原价170元，现在降价(1/5)．现在售价多少元？
<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">170 * (4/5)</gadget>
<output>136</output>

<result>136</result>