In (14/39), (12/36), (77/91), how much is the simplest fraction.
在(14/39)、(12/36)、(77/91)中，多少是最简分数．
<gadget id="calculator">14 / 39</gadget>
<output>14/39 = around 0.358974</output>

<result>14/39 = around 0.358974</result>