The difference between two rational numbers must be a rational number. Is this statement true?

A rational number is a number that can be written in the form a/b where a is an integer and b is a non-zero integer.

Answer: It is true that the difference between two rational numbers must be a rational number.

We will use the definition of the rational number to explain if the difference between two rational numbers is a rational number.

Explanation:

Consider two rational numbers, 4/5 and 1/5

Difference = 4/5 - 1/5 = 3/5  which is a rational number.

Therefore, the difference between two rational numbers must be a rational number.