Yes
It is a whole number so it is rational.
6.22 is a rational number. If you mean to turn it into a fraction of a/b then: 6.22 = 622/100 = 311/50 = 6 11/50
311, 311!
Itself and one because 311 is a prime number
311 is a prime number.
It is a rational number. It can be written as a fraction.
yes
Is 12.05 a rational number or irrational number?
1.96 is a rational number
It is a rational number, as it can be written as a fraction.
Yes, the sum is always rational.
There is no such thing as a number that is both rational and irrational. By definition, every number is either rational or irrational.