The sum of two rational numbers is rational.From there, it follows that the sum of a finite set of rational numbers is also rational.
Since the sum of two rational numbers is rational, the answer will be the same as for the sum of an irrational and a single rational number. It is always irrational.
They are always rational.
Yes, it is.
Yes, it is.
No
Yes.
Sure. For example, the sum of:root(2) and: - root(2) is zero, which is rational.
The sum of two rational numbers is rational.From there, it follows that the sum of a finite set of rational numbers is also rational.
sometimes true (when the rational numbers are the same)
Such a sum is always rational.
Since the sum of two rational numbers is rational, the answer will be the same as for the sum of an irrational and a single rational number. It is always irrational.
They are always rational.
No - the sum of any two rational numbers is still rational:
Yes, it is.
Yes, it is.
Yes, Rational numbers are numbers that can be written as a fraction. Irrational numbers cannot be expressed as a fraction.