The expression is .
As denominators are same, write difference of numerators over denominator.
(Subtract numerator: )
The difference is .
![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/step1.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=502d260d8c287e571e915f7b3958bf67.png\")
.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=64037bdb48c56f729f1691e1aeb34098.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=7823b1a378a466fa00385ec6f2fca174.png\")
(Subtract numerator: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ae28ff558ed0c3550719866c39104192.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=e37b0b3915481b28176d383725fa8e63.png\")
.