For a fraction, the sum of the numerator and the denominator is 168. After subtracting 6 from both the numerator and the denominator, the resulting fraction is (11/15). What is the original fraction?
一个分数，分子、分母之和为168，现在分子、分母都减去6后，所得分数约分后得到的分数是(11/15)，原来这个分数是多少．
<gadget id="calculator">11 / 15</gadget>
<output>11/15 = around 0.733333</output>

<gadget id="calculator">(11/15) * 168</gadget>
<output>616/5 = around 123.2</output>

<gadget id="calculator">(11/15) * 6</gadget>
<output>22/5 = around 4.4</output>

<gadget id="calculator">(616/5) - (22/5)</gadget>
<output>594/5 = around 118.8</output>

<gadget id="calculator">6 + (594/5)</gadget>
<output>624/5 = around 124.8</output>

<gadget id="calculator">1 + (11/15)</gadget>
<output>26/15 = around 1.733333</output>

<gadget id="calculator">(624/5) / (26/15)</gadget>
<output>72</output>

<gadget id="calculator">168 - 72</gadget>
<output>96</output>

<gadget id="calculator">(624/5) / (26/15) / 96</gadget>
<output>3/4 = around 0.75</output>

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