it is undefined. as siri would say: imagine you have 0 cookies to share with 0 friends. See it doesn't work. The cookie monster is sad you have no cookies and you are sad that you have no friends.
If your using this calculstor you do 1 then space then 1 divided by 3 if actual calculator you use 1.3333 and press second and press the f -> d which changes it from fraction to decimal
