[tex]\\ \sf\longmapsto \dfrac{6x^2y^3}{(-4x^4y)(-3x^3y^2)}[/tex]
[tex]\\ \sf\longmapsto \dfrac{6x^2y^3}{12x^{4+3}y^{2+1}}[/tex]
[tex]\\ \sf\longmapsto \dfrac{6x^2y^3}{12x^7y^3}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{2}x^{2-7}y^{3-3}[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{2}x^{-5}y^0[/tex]
[tex]\\ \sf\longmapsto \dfrac{1}{2x^5}[/tex]
