-6 can be represented as a rational number in several ways. A rational number is any number that can be expressed as the quotient or fraction of two integers, where the denominator is not zero.
One way to represent -6 as a rational number is to express it as a fraction:
\[ -6 = \frac{-6}{1} \]
You can also represent it with a different denominator:
\[ -6 = \frac{-12}{2} \]
or
\[ -6 = \frac{-18}{3} \]
In general, any fraction where the numerator is -6 multiplied by a non-zero integer and the denominator is that same integer will also represent -6 as a rational number.