I think most (all due to standard?) Scheme dialects have rationals. Pyret seems to have inherited them from Racket, which inherited them from Scheme. Common Lis

I think most (all due to standard?) Scheme dialects have rationals. Pyret seems to have inherited them from Racket, which inherited them from Scheme. Common Lisp also seems to have them (I just tried (/ 1 3) in SBCL REPL.). So there is quite a number of languages which have rationals, but many mainstreamy ones miss out in this aspect.