For a fraction, the sum of the numerator and the denominator is 35, which is (1/4) after division. What is the original score.
一个分数，分子与分母的和是35，约分后是(1/4)．这个分数原来是多少．
<gadget id="calculator">1 + 4</gadget>
<output>5</output>

<gadget id="calculator">1 / 5</gadget>
<output>1/5 = around 0.2</output>

<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<gadget id="calculator">35 * (4/5)</gadget>
<output>28</output>

<gadget id="calculator">(1/5) / 28</gadget>
<output>1/140 = around 0.007143</output>

<gadget id="calculator">35 * (1/140)</gadget>
<output>1/4 = around 0.25</output>

<result>1/4 = around 0.25</result>