true
A rational number is any number that can be written as the fraction a/b, where a and b are integers, and b ≠ 0. Notice that the fraction a/b can also be thought of as the quotient of two integers a and b. Therefore, it would seem that any quotient of integers is the exact definition of a rational number, and for the most part it is.
The quotient of two integers is almost always a rational number. The only exception is when we have the quotient of two integers, a and b, and b = 0. This is because we can never divide by zero, and the expression a/0 is undefined. Therefore, we have that the quotient of two integers, a and b, is always a rational number as long as b ≠ 0. Otherwise, if b = 0, then the quotient a/b is undefined.