![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
To add fractions the denominators must be equal.
\Find the least common denominator (LCD).
\Write the prime factorization of each denominator.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=1c7aac6d0039c353c36237069ae46596.png\")
Multiply the highest power of each factor in either number.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=08824f4b3ba09c64da75368280c33c4f.png\")
LCD of the fractions is 88.![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Rewrite the equivalent fractions using the LCD.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=96f1916b31245f754971a221776fa5ea.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=760e84a9dfad3ebe65e7afee9ab4e2ea.png\")
Rewrite the expression using the LCD.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=a8519b81c7d234d74dc423e1220a8303.png\")
![\"\"](\"/userfiles/image/steps_images/step3.JPG\")
Denominators are same, write difference of numerators over denominator.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=95f2d001a9189c2d0288faed38f8a7fb.png\")
![\"\"](\"http://www.mathskey.com/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bab7507924827330cc30a48cc441d411.png\")
(Subtract the numerators) \ \
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The simplified expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b30ed72b058928aea15076b5970ddd00.png\")
.