Useful Fraction Websites 

http://www.ixl.com/math/grade-5/add-and-subtract-fractions-with-like-denominators-word-problems

http://www.mathtastic123.com/addsub-fractions-with-like-denominators.html

http://mrnussbaum.com/grade_4_standards/addsubmixed/

http://www.studyzone.org/mtestprep/topic5.cfm?TopicID=82

http://www.ixl.com/math/practice/grade-5-add-and-subtract-fractions-with-like-denominators

http://www.iknowthat.com/com/L3?Area=FractionGame

http://fen.com/studentactivities/MathSplat/mathsplat.htm

http://www.quia.com/ba/57712.html

http://www.ixl.com/math/practice/grade-5-add-and-subtract-fractions-with-unlike-denominators-word-problems

http://www.ixl.com/math/practice/grade-5-complete-addition-and-subtraction-sentences-with-fractions

http://www.quia.com/cb/109924.html