Basic Fraction Concepts:
http://www.fuelthebrain.com/Game/play.php?ID=215
Equivalent Fractions:
http://pbskids.org/cyberchase/math-games/melvins-make-match/
http://www.ixl.com/math/grade-5/equivalent-fractions
Simplest Form of Fractions:
http://www.ixl.com/math/grade-5/reduce-fractions-to-simplest-form
Mixed Numbers and Improper Fractions
http://www.ixl.com/math/grade-5/convert-between-improper-fractions-and-mixed-numbers
Adding Fractions, Whole Numbers, and Mixed Numbers
http://www.abcya.com/adding_fractions.htm
http://www.mathplayground.com/ASB_Speedway.html
http://www.sheppardsoftware.com/mathgames/fractions/FruitShootFractionsAddition.htm
http://www.mathplayground.com/fractions_add.html
Subtracting Fractions, Whole Numbers, and Mixed Numbers
http://www.sheppardsoftware.com/mathgames/fractions/FruitShootFractionsSubtraction.htm
http://www.mathplayground.com/fractions_sub.html
Multiplying Fractions, Whole Numbers, and Mixed Numbers
http://www.mathplayground.com/fractions_mult.html
Dividing Fractions, Whole Numbers, and Mixed Numbers
http://www.mathplayground.com/fractions_div.html
http://www.coolmath4kids.com/fractions/fractions-16-dividing-01.html
http://www.coolmath4kids.com/fractions/fractions-17-dividing-whole-mixed-numbers-01.html
Fraction to Decimals & Decimals to Fractions
http://www.sheppardsoftware.com/mathgames/fractions/FractionsToDecimals.htm
http://www.mathplayground.com/fractions_convert.html
http://www.toonuniversity.com/flash.asp?err=198
http://www.coolmath.com/prealgebra/02-decimals/05-decimals-converting-decimal-to-fraction-01.htm