w10y12z

Question

_______
w6z5

Are those exponents like [(w^10)*(y^12)*z]/[(w^6)*(z^5)]?
If so then you should have some rules telling you how to simplify ratios of expressions. If the exponent of the numerator's term is greater than the term's exponent in the denominator, then subtract the denominator exp. from the numerator exp. For this problem w in the numerator has an exponent = 10 and the denominator exponent for w is 6. So subtract 6 from 10 to get w^4 in the numerator. The exp. of z is 5-1=4 for z in the denominator.