Definitions and examples of rational, irrational, and nonzero numbers

-Rational (definition) -

A number that can be expressed as the ratio of two integers.

-Rational (example) -

1.5 is a rational number.

-Irrational (definition) -

A number that cannot be expressed as the ratio of two integers.

-Irrational (example) -

π is a irrational number.

-Nonzero (definition) -

It is any number that is not equal to zero.

-Nonzero (example) -

1 is a nonzero number.