A simplest fraction ((a)/(b)) satisfies: (1/2)<((a)/(b))<(2/3), when the denominator b is the smallest, a+b=what.
一个最简分数((a)/(b))满足：(1/2)＜((a)/(b))＜(2/3)，当分母b最小时，a+b=多少．
<gadget id="calculator">3 + 5</gadget>
<output>8</output>

<result>8</result>