The current price of a color TV is 1200 yuan, which is 1/5 lower than the original price. How much is the original price? what is the correct formula
一台彩电现价1200元，比原价降低了(1/5)，原价是多少元？正确算式是多少
<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_200 / (4/5)</gadget>
<output>1_500</output>

<result>1_500</result>