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\")
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.![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=671ef18c3445db377f48b71fbb397f15.png\")
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(Subtract numerator: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=8052f16b6f2da9640dc0835d240e6058.png\")
)![\"\"](\"http://www.mathskey.com/userfiles/image/steps_images/solution.JPG\")
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.