a is a natural number greater than 0, the largest result of the following formulas is a/how much
a是一个大于0的自然数，下列各式结果最大的是a/多少
<gadget id="calculator">8 / 9</gadget>
<output>8/9 = around 0.888889</output>

<result>8/9 = around 0.888889</result>