What is the smallest denominator among the simplest fractions larger than (5/7) and smaller than (6/7).
比(5/7)大，比(6/7)小的最简分数中分母最小的是多少．
<gadget id="calculator">11 / 14</gadget>
<output>11/14 = around 0.785714</output>

<result>11/14 = around 0.785714</result>