The sum of the numerator and denominator of a fraction is 132, which is (4/7) after division, what is the original fraction
一个分数的分子分母和是132，约分后为(4/7)，原分数是多少
<gadget id="calculator">4 + 7</gadget>
<output>11</output>

<gadget id="calculator">132 / 11</gadget>
<output>12</output>

<gadget id="calculator">7 * 12</gadget>
<output>84</output>

<gadget id="calculator">132 / 11 / 84</gadget>
<output>1/7 = around 0.142857</output>

<gadget id="calculator">4 * (1/7)</gadget>
<output>4/7 = around 0.571429</output>

<result>4/7 = around 0.571429</result>