Yes, if there was a bar over the last 3, it would not be rational.
No
yes
By itself and one because 233 is a prime number
Yes.
yes
It must be a generalised rational number. Otherwise, if you select a rational number to multiply, then you will only prove it for that number.
233 is an integer and not a fraction. However, it can be expressed in rational form as 233/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.
233
233 + 1 = 234
It is: 1 times 233 = 233 which 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
Since it can be written as a fraction (9.0 = 90/10), then it 9.0 is a rational number.
It is a rational number, as it can be written as a fraction.
By itself and one because 233 is a prime number
Yes, the sum is always rational.