Hello,

The following calculation errors in elisp.

  ELISP> (/ (* (/ 3 4) (/ 7 13)) (/ 5 12))
  *** Eval error ***  Arithmetic error

The SBCL repl doesn't.

  CL-USER> (/ (* (/ 3 4) (/ 7 13)) (/ 5 12))
  63/65 (0.9692308, 1260/13%)

Steps to reproduce the error.

  1. start using, 'emacs -Q'
  2. get to the ielm elisp prompt, 'M-x ielm'
  3. enter the above calculation