--- loncom/xml/lontexconvert.pm	2005/02/24 09:28:54	1.51
+++ loncom/xml/lontexconvert.pm	2005/02/24 09:37:43	1.52
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # TeX Conversion Module
 #
-# $Id: lontexconvert.pm,v 1.51 2005/02/24 09:28:54 albertel Exp $
+# $Id: lontexconvert.pm,v 1.52 2005/02/24 09:37:43 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -256,7 +256,10 @@ sub postprocess_algebra {
     $string =~s/\\right\}/\}/g;
     
     # sqrt(3,4) means the 4 root of 3
-    $string =~s/\\sqrt{([^,]+),([^}]+)}/\\sqrt[$2]{$1}/gs;
+    $string =~s/\\sqrt{([^,]+),([^\}]+)}/\\sqrt[$2]{$1}/gs;
+
+    # remove the extra () in the denominator of a \frac
+    $string =~s/\\frac{(.+?)}{\\left\((.+?)\\right\)}/\\frac{$1}{$2}/gs;
 
     &Apache::lonnet::logthis($string);
     return $string;