Given positive integers $a, b,$ and $c$ with $a + b + c = 20$. Determine the number of possible integer values for $\frac{a + b}{c}.$
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Tags: Integers
Given positive integers $a, b,$ and $c$ with $a + b + c = 20$. Determine the number of possible integer values for $\frac{a + b}{c}.$