Eli5 why is a number divided by zero undefined?

Question

Example I have a pizza I cut it into zero pieces shouldnt it be still one whole pizza?
Since I didn’t cut it so it’s still whole

In: 0

Answer 1

Division is multiplying by the inverse. i.e. If you say 6/3=2, that means 3*2=6. However, if you divide any number ny zero, you are saying there’s a number which multiplied by zero yields a number different from zero, which we know it’s impossible