The sum of the numerator and denominator of a fraction is 166. If 25 is added to both the numerator and denominator, the resulting fraction is (1/5). What is the original fraction?
一个分数分子和分母的和是166，如果分子和分母都加上25，得到的分数是(1/5)，原来的分数是多少．
<gadget id="calculator">166 + 25 + 25</gadget>
<output>216</output>

<gadget id="calculator">5 / 1</gadget>
<output>5</output>

<gadget id="calculator">1 + 5</gadget>
<output>6</output>

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

<gadget id="calculator">216 * (1/6)</gadget>
<output>36</output>

<gadget id="calculator">36 - 25</gadget>
<output>11</output>

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

<gadget id="calculator">216 * (5/6)</gadget>
<output>180</output>

<gadget id="calculator">180 - 25</gadget>
<output>155</output>

<gadget id="calculator">11 / 155</gadget>
<output>11/155 = around 0.070968</output>

<result>11/155 = around 0.070968</result>