If a is a natural number greater than 0, then the largest number in the following formulas is a/how many
如果a是一个大于0的自然数，那么下列各式中得数最大的是a/多少
<gadget id="calculator">4 / 5</gadget>
<output>4/5 = around 0.8</output>

<result>4/5 = around 0.8</result>