![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
The fraction is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1a15b10341243280e567fee6d7be3f67.png\")
.
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=43e3b70b8b6fc0b0f8b87057f1221349.png\")
(Write prime factorization of numerator)
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=64973420cb35cf7c0f5aa2b0ad79b2ba.png\")
(Write prime factorization of denominator)
The GCF of 21 and 48 is 3.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=f1f1f8f25d6a637bd5ee4dd525a4eefc.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=542afc9c982abd981103b0ea945596e5.png\")
.