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For non-negative integers $a$ and $b,$ where $a \ge 2$ and $b \ge 2,$ simplify
(a + b)/2 - a/2 - b/2

 Oct 12, 2023
 #1
avatar+671 
0

First, we can factor out a 21​ from all the terms:

(a + b)/2 - a/2 - b/2 = \frac{1}{2} (a + b - a - b)

Then, we can combine the a and b terms:

\frac{1}{2} (a + b - a - b) = \frac{1}{2} \cdot 0 = \boxed{0}

 Oct 12, 2023

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