3.18 IS a rational number. The fact that it is expressed as a terminating decimal does not mean it is not rational. As a ratio, it can be written as 318/100. You may simplify that ratio if you so wish.
By leaving it alone because the whole number of 318 is already an integer
yes
Yes.
yes
3.18 IS a rational number. The fact that it is expressed as a terminating decimal does not mean it is not rational. As a ratio, it can be written as 318/100. You may simplify that ratio if you so wish.
318 is an integer and not a fraction. However, it can be expressed in rational form as 318/1. You can then calculate equivalent rational fractions if you multiply both, its numerator and denominator, by any non-zero integer.
318 is a number
By leaving it alone because the whole number of 318 is already an integer
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.
As much as, in these days of uncertainty, anything can be anything. As long as the constraints of a rational number are kept to, a rational number will always remain a rational number.