The sum of just one rational number is simply itself and so it is rational. A sum normally refers to a mathematical operation on two or more numbers.
Please edit the question to include more context or relevant information.
No. In fact the sum of a rational and an irrational MUST be irrational.
The value of the sum depends on the values of the rational number and the irrational number.
It is always irrational.
The sum is irrational.
An irrational number.
The sum of a rational and irrational number must be an irrational number.
No. In fact the sum of a rational and an irrational MUST be irrational.
The value of the sum depends on the values of the rational number and the irrational number.
It is always irrational.
The sum is irrational.
Such a sum is always irrational.
An irrational number.
The sum of the three can be rational or irrational.
Any, and every, irrational number will do.
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.
The sum of two irrational numbers may be rational, or irrational.
Yes