Question 246773
a^2 b^-3
DIVIDED BY
a^-4 b^2

b^-3 means  1/b^3
a^-4 means 1/a^4
so that puts all the A's on top and all the B's on bottom.
so we have (a^2*a^4)/(b^2*b^3)
so we add the 2 and 4 
and we add the 2 and 3
a^6/b^5