The current price of a kind of clothing is 140 yuan, which is (2/7) lower than the original price. How much is the original price?
一种服装现价是140元，比原价降低了(2/7)．原价是多少元？
<gadget id="calculator">2 / 7</gadget>
<output>2/7 = around 0.285714</output>

<gadget id="calculator">1 - (2/7)</gadget>
<output>5/7 = around 0.714286</output>

<gadget id="calculator">140 / (5/7)</gadget>
<output>196</output>

<result>196</result>