For a fraction, the sum of the numerator and the denominator is 42. If 8 is added to the numerator, the fraction is equal to 1. Do you know what the original fraction is?
一个分数，分子与分母的和是42，如果分子加上8，这个分数就等于1，你知道这个分数原来是多少吗？
<gadget id="calculator">42 - 8</gadget>
<output>34</output>

<gadget id="calculator">1 + 1</gadget>
<output>2</output>

<gadget id="calculator">34 / 2</gadget>
<output>17</output>

<gadget id="calculator">42 - 17</gadget>
<output>25</output>

<gadget id="calculator">34 / 2 / 25</gadget>
<output>17/25 = around 0.68</output>

<result>17/25 = around 0.68</result>