The original price of a washing machine is 800 yuan, and the current price is cheaper than the original price (1/5). How much is the price reduction for this washing machine?
一种洗衣机原价是800元，现价比原价便宜了(1/5)，这种洗衣机降价多少元？
<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">800 * (1/5)</gadget>
<output>160</output>

<result>160</result>