Explicación paso a paso:
a)
[tex] \frac{ - 12 {x}^{5} {y}^{3} }{3x {y}^{1} } = - 4 {x}^{4} {y}^{2} [/tex]
b)
[tex] \frac{ - 30 {a}^{4} {b}^{3} }{ - 15a {b}^{2} } = 2 {a}^{3} b[/tex]
c)
[tex] \frac{ - 8 {x}^{5} {y}^{3} {z}^{2} }{ - 4 {x}^{3}z } = 2 {x}^{2} {y}^{3} z[/tex]
d)
[tex] \frac{ \frac{ - 8}{3} {x}^{5} {y}^{2} }{ \frac{1}{8} {x}^{2} y } = \frac{ - 64}{3} {x}^{3} y [/tex]
e)
[tex] \frac{ \frac{ -1 }{2} {m}^{3} {n}^{3} }{ \frac{ - 2}{4}m {n}^{2} } = {m}^{2} n[/tex]
f)
[tex] \frac{ \frac{ - 7}{3} {m}^{2} {n}^{3} }{ \frac{ - 3}{1} m {n}^{2} } = \frac{7}{9} mn[/tex]
