a is a natural number not equal to 0, the largest number in the following formulas is a/how many
a是一个不等于0的自然数，下面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>