The current price is lower than the original price (1/6), and the current price is the original price.
现价比原价降低了(1/6)，现价是原价的多少．
<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">1 - (1/6)</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>