You need to click on register "maybe later" when you go to t his site:
http://www.iknowthat.com/com/L3?Area=FractionGame

Fraction Worksheets for Practice, Challenge, Fun!

Fraction Track
http://standards.nctm.org/document/eexamples/chap5/5.1/index.htm

Identify Fractions
http://visualfractions.com/EnterCircle.html

Great for Equivalent Fractions
http://www.learningplanet.com/sam/ff/index.asp

Equivalent  Fraction Lab
http://pbskids.org/cyberchase/games/equivalentfractions/index.html

Equivalent Fractions---some easy, some hard.
http://www.interactivestuff.org/sums4fun/shade.html

Good for Greenies
http://www.quia.com/mc/260434.html

http://www.quia.com/cc/260434.html