The numerator of a simplest fraction is added with 10, and the denominator is added with 14, but the magnitude remains the same. What is the simplest fraction?
一个最简分数的分子加上10，分母加上14后大小却不变，这个最简分数是多少．
<gadget id="calculator">10 / 2</gadget>
<output>5</output>

<gadget id="calculator">14 / 2</gadget>
<output>7</output>

<gadget id="calculator">5 / 7</gadget>
<output>5/7 = around 0.714286</output>

<result>5/7 = around 0.714286</result>