1)

[tex] \frac{18bc}{24c} = \frac{3b}{4} [/tex]

2)

[tex] \frac{25 {a}^{2}y }{15by} = \frac{5 {a}^{2} }{3b} [/tex]

3)

[tex] \frac{24 {a}^{3} }{6ac} = \frac{4 {a}^{2} }{c} [/tex]

4)

[tex] \frac{27 {x}^{2} y}{21x {y}^{3} } = \frac{9x}{7 {y}^{2} } [/tex]

5)

[tex] \frac{ - 2 {a}^{6} {b}^{3} }{ {a}^{3} {b}^{5} } = - \frac{2 {a}^{3} }{ {b}^{2} } [/tex]

6)

[tex] \frac{ {x}^{7} {y}^{4} }{ {x}^{5} {y}^{8} } = \frac{ {x}^{2} }{ {y}^{4} } [/tex]

7)

[tex] \frac{42 {m}^{3} {n}^{5} }{35m {n}^{5} } = \frac{6 {m}^{2} }{5} [/tex]

8)

[tex] \frac{75 {p}^{4} q}{150 {p}^{5} q} = \frac{1}{2p} [/tex]