![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The fraction is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e031385b13e42a5b02072e56becacc5c.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b5acdc3bc25112c0be38dcc12ae5bc8e.png\")
(Write prime factorization of numerator)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=4128b0ac8411298a7d9b2fa74a1c6dda.png\")
(Write prime factorization of denominator)
The GCF of 39 and 42 is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=aa67865fb7307c4fba8ac2594a64b62d.png\")
.
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=3b8cf8137b2a16fa49661d3cae0ab70d.png\")
(Divide numerator and denominator by GCF)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
The simplest form of the fraction is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=29e4cfdc641da2d9b81040d953765cf7.png\")
.
\ \