#(12xy^3z^2)/(8xy^(-4)z^5)#
#color(white)("XXX")=color(magenta)(12/8) xx color(green)(x/x) xx color(red)((y^3)/(y^(-4))) xx color(blue)((z^2)/(z^5))#
#color(white)("XXX")=color(magenta)(3/2) xx color(green)(1) xx color(red)(y^3xxy^4) xx color(blue)(1/z^3)#
#color(white)("XXX")=color(magenta)(3/2) xx color(green)(1) xx color(red)(y^7) xx color(blue)(1/z^3)#
#color(white)("XXX")=(3y^7)/(2z^3)#