\({5 \over 3a}-{9 \over 3a}=-{4 \over 3a}\)

\({3 \over x}-{5 \over 7x}={21 \over 7x}-{5 \over 7x}={16 \over 7x}\)

\({5 \over 7a}-{6 \over 3b}={15b \over 21ab}-{42a \over 21ab}={15b-42a \over 21ab}={5b-14a \over 7ab}\)

\(9+{5 \over 8p}={9 \over 1}+{5 \over 8p}={72p \over 8p}+{5 \over 8p}={72p+5 \over 8p}\)

\({6x \over y}+{8 \over 3y}={18x \over 3y}+{8 \over 3y}={18x+8 \over 3y}\)

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

\({a \over 2a}={1 \over 2}\)

\({-25p \over -45p}=\frac{5}{9}\)

\({-10a \over -5a}=2\)

\({32xy \over -36xz}=-{8y \over 9z}\)

\({-24y \over 27xy}=-{8 \over 9x}\)

\({-10abc \over -2bc}=5a\)

\({7pq \over q}-{2pr \over r}=7p-2p=5p\)

\(8x-{5 \over 2x}={8x \over 1}⋅{2x \over 2x}-{5 \over 2x}={16x^2 \over 2x}-{5 \over 2x}={16x^2-5 \over 2x}\)

\({3b \over 2a}-{5a \over 8b}={12b^2 \over 8ab}-{5a^2 \over 8ab}={-5a^2+12b^2 \over 8ab}\)

\({7 \over x}⋅-{9 \over y}=-{63 \over xy}\)

\({p \over 7}⋅{2 \over q}={2p \over 7q}\)

\({2 \over 5}⋅a={2a \over 5}\)

\({7q \over p}⋅{p-5 \over 8}={7q(p-5) \over 8p}={7pq-35q \over 8p}\)

\({2 \over x}:{9 \over y}={2 \over x}⋅{y \over 9}={2y \over 9x}\)

\({6 \over 5}:a={6 \over 5}:{a \over 1}={6 \over 5}⋅{1 \over a}={6 \over 5a}\)

\(-{3 \over 4}:{a+6b \over b}=-{3 \over 4}⋅{b \over a+6b}=-{3b \over 4(a+6b)}=-{3b \over 4a+24b}\)

\({x \over 6}+{x-7 \over 5}={5x \over 30}+{6(x-7) \over 30}={5x+6(x-7) \over 30}={11x-42 \over 30}\)

\({7x-4 \over -8x-6}+9={7x-4 \over -8x-6}-{-9(-8x-6) \over -8x-6}={7x-4+9(-8x-6) \over -8x-6}={7x-4-72x-54 \over -8x-6}={-65x-58 \over -8x-6}\)

\({2a^2-6a+40 \over 2a}={2a^2 \over 2a}-{6a \over 2a}+{40 \over 2a}=a-3+{20 \over a}\)

\({3p^2+7p-5 \over 4p^2}={3p^2 \over 4p^2}+{7p \over 4p^2}-{5 \over 4p^2}=\frac{3}{4}+{7 \over 4p}-{5 \over 4p^2}\)