Racket (aka PLT Scheme): $ racket Welcome to Racket v5.0.1. > (+ .1 .2) 0.30000000000000004 > (+ 1/10 2/10) 3/10 Steel Bank Common Lisp: $ sbcl

Racket (aka PLT Scheme): $ racket Welcome to Racket v5.0.1. > (+ .1 .2) 0.30000000000000004 > (+ 1/10 2/10) 3/10 Steel Bank Common Lisp: $ sbcl This is SBCL 1.0.43 [...elided] * (+ .1 .2) 0.3 * (+ 1/10 2/10) 3/10