Stephanie M. answered 06/18/15
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I'll assume you meant to say it's a 6-cup package.
We want to divide 6 cups into some number of 2/3-cup servings. Call that number of servings x. So:
6 ÷ (2/3) = x
Switch to multiplication by the fraction's reciprocal:
6 × (3/2) = x
(6/1) × (3/2) = x
(6×3) / (1×2) = x
18/2 = x
9 = x
There are x = 9 servings of that size in the package.