The original price of a coat is 280 yuan, the current price is lower than the original price (3/7), how much is the reduction?
一件上衣原价是280元，现价比原价降低了(3/7)，降低了多少元？
<gadget id="calculator">3 / 7</gadget>
<output>3/7 = around 0.428571</output>

<gadget id="calculator">280 * (3/7)</gadget>
<output>120</output>

<result>120</result>