After the price of a refrigerator of a certain brand is reduced by 30%, each refrigerator is priced at a yuan, what is the original price of each refrigerator of this brand?
某种品牌的冰箱标价降价30%以后，每台售价为a元，则该品牌冰箱每台原价是多少．
<gadget id="calculator">10 / 7</gadget>
<output>10/7 = around 1.428571</output>

<result>10/7 = around 1.428571</result>