Answer:
4 1/6 cups of the smoothie were left.
Explanation:
The LCD here is (3)(4) = 12.
Thus, 5 2/3 cups equals 5 8/12 and 1 3/4 cups equals 1 6/12 cups.
Subtract 1 6/12 cups from the original 5 8/12 cups. We get:
5 8/12
-1 6/12
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4 2/12, or 4 1/6.
4 1/6 cups of the smoothie were left.