A fraction, numerator, and denominator are divided by the same number at the same time (6/7). The original sum of the numerator and denominator is 52. What is the original fraction?
一个分数，分子，分母同时除以相同的数得(6/7)，原来分子与分母的和是52，原来的分数是多少？
<gadget id="calculator">6 + 7</gadget>
<output>13</output>

<gadget id="calculator">6 / 13</gadget>
<output>6/13 = around 0.461538</output>

<gadget id="calculator">52 * (6/13)</gadget>
<output>24</output>

<gadget id="calculator">52 - 24</gadget>
<output>28</output>

<gadget id="calculator">(6/13) / 28</gadget>
<output>3/182 = around 0.016484</output>

<gadget id="calculator">52 * (3/182)</gadget>
<output>6/7 = around 0.857143</output>

<result>6/7 = around 0.857143</result>