\({6 \over 5p}-{2 \over 5p}={4 \over 5p}\)

\({9 \over x}-{2 \over 4x}={36 \over 4x}-{2 \over 4x}={34 \over 4x}={17 \over 2x}\)

\({4 \over 5a}-{6 \over 3b}={12b \over 15ab}-{30a \over 15ab}={12b-30a \over 15ab}={4b-10a \over 5ab}\)

\(8-{3 \over 2a}={8 \over 1}-{3 \over 2a}={16a \over 2a}-{3 \over 2a}={16a-3 \over 2a}\)

\(4x+{5 \over 6x}={4x \over 1}⋅{6x \over 6x}+{5 \over 6x}={24x^2 \over 6x}+{5 \over 6x}={24x^2+5 \over 6x}\)

\({6p \over q}-{8 \over 9q}={54p \over 9q}-{8 \over 9q}={54p-8 \over 9q}\)

\({2b \over 5a}-{7a \over 9b}={18b^2 \over 45ab}-{35a^2 \over 45ab}={-35a^2+18b^2 \over 45ab}\)

\({7a \over a}={7 \over 1}=7\)

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

\({40x \over -45x}=-\frac{8}{9}\)

\({10x \over 2x}=5\)

\({-20ab \over 24ac}=-{5b \over 6c}\)

\({10b \over 15ab}={2 \over 3a}\)

\({12xyz \over 3yz}=4x\)

\({2pq \over q}-{3pr \over r}=2p-3p=-p\)

\({7 \over a}⋅{4 \over b}={28 \over ab}\)

\({x \over 4}⋅-{6 \over y}=-{6x \over 4y}=-{3x \over 2y}\)

\({7 \over 8}⋅a={7a \over 8}\)

\({6 \over p}:{4 \over q}={6 \over p}⋅{q \over 4}={6q \over 4p}={3q \over 2p}\)

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

\({p \over 2}+{p-6 \over 9}={9p \over 18}+{2(p-6) \over 18}={9p+2(p-6) \over 18}={11p-12 \over 18}\)

\(-{6 \over 7}:{a-8b \over b}=-{6 \over 7}⋅{b \over a-8b}=-{6b \over 7(a-8b)}=-{6b \over 7a-56b}\)

\({3a-7 \over -9a+4}+6={3a-7 \over -9a+4}-{-6(-9a+4) \over -9a+4}={3a-7+6(-9a+4) \over -9a+4}={3a-7-54a+24 \over -9a+4}={-51a+17 \over -9a+4}\)