There are two candles of different lengths, thick and thin. It takes 10 hours to light the thick candle, and 8 hours to light the thin candle. Now, after lighting the two candles at the same time for 2 hours, the remaining lengths are exactly equal. The length of the thin candle is exactly the same as that of the thick candle. ((())/(())) of the candle.
有粗细两支不同长度的蜡烛，点燃完粗蜡烛要用10小时，点燃完细蜡烛需要8小时，现将两支蜡烛同时点燃2小时后，剩下的长度恰好相等，原来细蜡烛长度是粗蜡烛的((())/(()))．
<gadget id="calculator">1 / 8</gadget>
<output>1/8 = around 0.125</output>

<gadget id="calculator">(1/8) * 2</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">1 - (1/4)</gadget>
<output>3/4 = around 0.75</output>

<gadget id="calculator">1 / 10</gadget>
<output>1/10 = around 0.1</output>

<gadget id="calculator">(1/10) * 2</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">1 - (1/5)</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">(3/4) / (4/5)</gadget>
<output>15/16 = around 0.9375</output>

<result>15/16 = around 0.9375</result>