Equivalent Fractions
Equivalent Fractions
http://www.mhhe.com/math/ltbmath/bennett_nelson8e/VMK.html?initManip=fractionBars
Math Playground
http://www.mathplayground.com/Fraction_bars.html
Glencoe
http://www.glencoe.com/sites/common_assets/mathematics/ebook_assets/vmf/VMF-Interface.html
Think Central
Fraction Bars
https://my.hrw.com/math06_07/nsmedia/tools/Func_Bars/Func_Bars.html