The price of a radio was 150 yuan last year, and the price is lower (1/5) this year than last year. How much is the price of each radio this year?
一种收音机去年售价是150元，今年比去年价格降低(1/5)，今年每台售价是多少元？
<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">150 * (4/5)</gadget>
<output>120</output>

<result>120</result>