![\"\"](\"/userfiles/image/steps_images/step1.JPG\")
The expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=b6697ef9467926861068f84b5ee92fdc.png\")
To add fractions the denominators must be equal.
\Find the least common denominator (LCD).
\Multiples of 12: 12,24,36,48...........
\Multiples of 36: 36,72.........
\The least common multiple of 12 and 36 is 36.
\Rewrite each fraction with a common denominator of 36.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=09e5a4703703aa4ff148fc85b9aa9093.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=ca8d47c4953d0fe6cb148170f0378ca4.png\")
![\"\"](\"/userfiles/image/steps_images/step2.JPG\")
Rewrite fractions using the LCD 36.
\![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=bc093ece551d0d282420479e60c80b31.png\")
![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=68dbb826798bd1cb9a9d7088be582e6a.png\")
(Add: ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=6db10634fec3ed71c10b03bc18cb7bd6.png\")
) \ \
![\"\"](\"/userfiles/image/steps_images/solution.JPG\")
The value of the expression is ![\"\"](\"/test/fckeditor/editor/plugins/fckeditor_wiris/integration/showimage.php?formula=5afeed2ab5906b2ee73eabd019dcc5ca.png\")
.