Continued fractions with non-integer numerators

Anselm and Weintraub investigated a generalization of classic continued fractions, where the “numerator” 1 is replaced by an arbitrary positive integer. Here, we gener- alize further to the case of an arbitrary real number z ≥ 1. We focus mostly on the case where z is rational but not an integer. Extensive attention is given to periodic expansions and expansions for √n, where we note similarities and differences between the case where z is an integer and when z is rational. When z is not an integer, it need no longer be the case that √n has a periodic expansion. We give several infinite families where periodic expansions of various types exist.