Please tell me what is 22x^-4 y^-7 / 2x^-6 y^-3？

Please tell me what is 22x^-4 y^-7 / 2x^-6 y^-3？　Ｔｈａｎｋ　ｙｏｕ

22 * x^(-4) * y^(-7)
---------------------------
2 * x^(-6) * y^(-3)


=

22 * (x^6) * (y^3)
------------------------
2 * (x^4) * (y^7)

=

11 * x^(6-4) * y^(3-7)

=

11 * x^2 * y^(-4)