Mom bought a dress that was sold at the original price (7/10) and spent 140 yuan. What is the original price of this dress?
妈妈购买了一件按原价(7/10)出售的衣服，花了140元，这件衣服的原价是多少元？
<gadget id="calculator">7 / 10</gadget>
<output>7/10 = around 0.7</output>

<gadget id="calculator">140 / (7/10)</gadget>
<output>200</output>

<result>200</result>