# How do you determine if -2/3 is a monomial?

$- \frac{2}{3}$ is a monomial.
Examples are $5 x$, $- 13 y$, $\frac{6}{5} x y$, $7 {x}^{2} y$, $- 3 {x}^{3} y {z}^{4}$ or even the constant terms like $5$, $- \frac{7}{2}$ or $- \frac{2}{3}$.
Hence $- \frac{2}{3}$ is a monomial.