\({8 \over 9x}-{3 \over 9x}={5 \over 9x}\)

\({5 \over x}-{9 \over 6x}={30 \over 6x}-{9 \over 6x}={21 \over 6x}={7 \over 2x}\)

\({9 \over 6a}-{7 \over 3b}={9b \over 6ab}-{14a \over 6ab}={9b-14a \over 6ab}\)

\(8+{2 \over 9p}={8 \over 1}+{2 \over 9p}={72p \over 9p}+{2 \over 9p}={72p+2 \over 9p}\)

\(6a+{4 \over 5a}={6a \over 1}⋅{5a \over 5a}+{4 \over 5a}={30a^2 \over 5a}+{4 \over 5a}={30a^2+4 \over 5a}\)

\({7a \over b}+{5 \over 8b}={56a \over 8b}+{5 \over 8b}={56a+5 \over 8b}\)

\({5y \over 9x}-{4x \over 3y}={5y^2 \over 9xy}-{12x^2 \over 9xy}={-12x^2+5y^2 \over 9xy}\)

\({5a \over a}={5 \over 1}=5\)

\({x \over 3x}={1 \over 3}\)

\({-8p \over 36p}=-\frac{2}{9}\)

\({32a \over -4a}=-8\)

\({18xy \over -21xz}=-{6y \over 7z}\)

\({20y \over -25xy}=-{4 \over 5x}\)

\({20abc \over -4bc}=-5a\)

\({4pq \over q}+{3pr \over r}=4p+3p=7p\)

\({9 \over a}⋅{4 \over b}={36 \over ab}\)

\({p \over 8}⋅{7 \over q}={7p \over 8q}\)

\(-{4 \over 7}⋅x=-{4x \over 7}\)

\({8 \over a}:{6 \over b}={8 \over a}⋅{b \over 6}={8b \over 6a}={4b \over 3a}\)

\(-{9 \over 5}:x=-{9 \over 5}:{x \over 1}=-{9 \over 5}⋅{1 \over x}=-{9 \over 5x}\)

\({x \over 5}+{x-2 \over 3}={3x \over 15}+{5(x-2) \over 15}={3x+5(x-2) \over 15}={8x-10 \over 15}\)