For a fraction, the sum of the numerator and denominator is 37. After the numerator is reduced by 2, it can be simplified to (1/6). What is the original fraction?
一个分数，分子和分母的和是37，分子减少2后，可简化为(1/6)，这个分数原来是多少．
<gadget id="calculator">37 - 2</gadget>
<output>35</output>

<gadget id="calculator">1 + 6</gadget>
<output>7</output>

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

<gadget id="calculator">35 * (1/7)</gadget>
<output>5</output>

<gadget id="calculator">5 + 2</gadget>
<output>7</output>

<gadget id="calculator">6 / 7</gadget>
<output>6/7 = around 0.857143</output>

<gadget id="calculator">35 * (6/7)</gadget>
<output>30</output>

<gadget id="calculator">7 / 30</gadget>
<output>7/30 = around 0.233333</output>

<result>7/30 = around 0.233333</result>