Simplify a^2b^3(xy-pq)^4(c+d)/a^3bc(xy-pq)^3

And an explaination if possible. pleaaaase!

a^2b^3(xy-pq)^4(c+d)/a^3bc(xy-pq)^3

a^2b^3(xy-pq)(c+d)/a^3bc

a^2b^2(xy-pq)(c+d)/a^3c

b^2(xy-pq)(c+d)/ac