The difference between the numerator and the denominator of a fraction is 8, and the fraction is (7/11). What is the original fraction?
一个分数的分子与分母相差8，约分后为(7/11)，原分数为多少．
<gadget id="calculator">8 / 4</gadget>
<output>2</output>

<gadget id="calculator">2 * 11</gadget>
<output>22</output>

<gadget id="calculator">8 / 4 / 22</gadget>
<output>1/11 = around 0.090909</output>

<gadget id="calculator">7 * (1/11)</gadget>
<output>7/11 = around 0.636364</output>

<result>7/11 = around 0.636364</result>