HELP with math...hexagon quilt...yardage. SO sosososososoososo confused.

[Madeforyouinma11]

If your fabric is 6 yards, that is 216" by say 42" wide. If a half hexi is 4 1/2" tall, that will give you approx 48 half hexis down the length, maybe more if you keep flipping your ruler, and if your hexis are 8 1/2" wide that will give you approx 4 across the width, maybe more if you keep flipping your ruler. 48x4 equals 192 half hexis minimum, which is 96 whole. I think that is correct.

Oh! I just realized that you cut your fabric into layer cakes....that will yield a lot less and you will have more waste than if you hadn't precut.
I figured that you got 84 10" squares out of your 6 yards so that will give you 168 half hexis or 84 whole.