The shopping mall held store celebration activities. After a 20% discount, a refrigerator is 2,400 yuan. How much is the original price of this refrigerator?
商场开展店庆活动，一台冰箱打八折后是2400元，这台冰箱原价多少元？
<gadget id="calculator">80 / 100</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">2_400 / (4/5)</gadget>
<output>3_000</output>

<result>3_000</result>