Yes because the numerators add up to equal a whole number which is 1
Yes, if you add zero to any number, it will always remain itself. The value of zero is, literally, nothing, so nothing would be added to any number.
Zero. It's called the "additive identity" because when you add 0 to some number you always end up with the same number, like 17 + 0 = 17.
There is no such thing as a biggest fraction, for the same reason that there is no biggest number. For example, if you have a large (finite) number, you can always add 1 to it to get an even larger number.
-5+-3 = -8 ++ Add -- Add +- Subtract -+ Subtract
No. You can always add one to a number, to get a larger number.
Prime number
One always gets an even number.
There is no longest or biggest number. You can always add one more - or add one more digit - to get a larger number.
It will always be a positive number.
That always gives you an odd number.
When you add an odd number to an odd number, you get an even number. When you add an odd number to that even number, the sum is always odd. Don't believe it? Try a few examples yourself.