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-rw-r--r--lisp/calc/calc-comb.el2
1 files changed, 1 insertions, 1 deletions
diff --git a/lisp/calc/calc-comb.el b/lisp/calc/calc-comb.el
index bc1ac315a01..c84ff236851 100644
--- a/lisp/calc/calc-comb.el
+++ b/lisp/calc/calc-comb.el
@@ -260,7 +260,7 @@
(defun calcFunc-lcm (a b)
(let ((g (calcFunc-gcd a b)))
(if (Math-numberp g)
- (math-div (math-mul a b) g)
+ (math-div (math-abs (math-mul a b)) g)
(list 'calcFunc-lcm a b))))
(defun calcFunc-egcd (a b) ; Knuth section 4.5.2