interactive fractions
a1 a2 a3 a4
b1 b2 b3 b4
c1 c2 c3 c4
what fractions look like types of fractions operations 
what fractions look likeeighths


This is what an eighth looks like. Drag some points.
1/8 2/8=1/4 3/8 4/8=2/4=1/2
5/8 6/8=3/4 7/8 8/8=4/4=2/2=1