any number that can be expressed as a ratio or fraction

In other words, any number that can be expressed as a ratio or fraction is a rational number.

Any number that can be expressed as one integer divided by another (except division by zero)

Any number that can be expressed as one integer divided by another (except division by zero) is a rational number.

a number that can be written as a fraction of two integers

Under rational numbers, the second sentence should read 'Any number that can be written as a fraction of two integers is a rational number.'

Any number that can be shown as a fraction

Any number that can be shown as a fraction is by definition a rational number.

A number which can be expressed as pq, where p and q are integers and q≠0

A number which can be expressed as pq, where p and q are integers and q≠0 is a rational number.

any number that can be written as a fraction, where both the top number (numerator) and the bottom number (denominator) are integers

A rational number is any number that can be written as a fraction, where both the top number (numerator) and the bottom number (denominator) are integers.

any number that can be written as a fraction, of which the numerator and denominator are real numbers, and the denominator is not zero.

A rational number is any number that can be written as a fraction, of which the numerator and denominator are real numbers, and the denominator is not zero.

The sum, difference and the product of two rational numbers

The sum, difference and the product of two rational numbers is always a rational number.

a number which has a numerator and a denominator

A rational number is a number which has a numerator and a denominator.

The quotient of a positive integer and a negative integer

The quotient of a positive integer and a negative integer is a rational number.

a number of the form a/b

Rational number is a number of the form a/b, where a and b are integers, and b is not equal to zero.

a number of the form \(\frac { p }{ where pq are integers and q ≠ 0 q }\), ,

We know that, a number of the form \(\frac { p }{ q }\), where p, q are integers and q ≠ 0 is a rational number.

that you can write as a fraction

A rational number is any number that you can write as a fraction.

either an integer, or two integers '/') separated by a solidus (

A rational number is either an integer, or two integers separated by a solidus ('/').