There are 6 bottles of beverages, one of which has passed the expiration date, and now you can take any bottle from it, what is the possibility that the expiration date has not expired?
有6瓶饮料，其中有1瓶过了保质期，现在从中任取一瓶，没过保质期的可能性是多少
<gadget id="calculator">6 - 1</gadget>
<output>5</output>

<gadget id="calculator">5 / 6</gadget>
<output>5/6 = around 0.833333</output>

<result>5/6 = around 0.833333</result>