Question

Which rational number should be subtracted from $\frac{-5}{6}$ to get $\frac{4}{9}$?

Answer 1

Let the rational number be $x$

$\frac{-5}{6}-x=\frac{4}{9}⟹-x=\frac{4}{9}+\frac{5}{6}⟹x=-\frac{23}{18}$