A refrigerator is priced at 2100 yuan after the price reduction (1/8), what is the original price?
一台冰箱降价(1/8)后售价为2100元，原价是多少元．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">1 - (1/8)</gadget>
<output>7/8 = around 0.875</output>

<gadget id="calculator">2_100 / (7/8)</gadget>
<output>2_400</output>

<result>2_400</result>