A slender candle is lit in 4 hours, a thick and short candle is lit in 6 hours, and two candles are lit at the same time for 2 hours, and the remaining lengths are exactly equal. It turns out that the stubby candle is a fraction of the slender candle?
一支细长蜡烛4小时点完，一支粗短蜡烛6小时点完，两支蜡烛同时点2小时后，剩下的长度正好相等．原来粗短蜡烛是细长蜡烛的几分之几？
<gadget id="calculator">1 / 4</gadget>
<output>1/4 = around 0.25</output>

<gadget id="calculator">(1/4) * 2</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 - (1/2)</gadget>
<output>1/2 = around 0.5</output>

<gadget id="calculator">1 / 6</gadget>
<output>1/6 = around 0.166667</output>

<gadget id="calculator">(1/6) * 2</gadget>
<output>1/3 = around 0.333333</output>

<gadget id="calculator">1 - (1/3)</gadget>
<output>2/3 = around 0.666667</output>

<gadget id="calculator">(1/2) / (2/3)</gadget>
<output>3/4 = around 0.75</output>

<result>3/4 = around 0.75</result>