Question

Find (a+b) + (a-b) if a=1/2 b=2/3​

Answer 1

Answer:

$(\frac{1}{2} +\frac{2}{3}) + (\frac{1}{2} -\frac{2}{3}) = \\\\(\frac{3}{6} +\frac{4}{6})+(\frac{3}{6} -\frac{4}{6})\\\\\frac{7}{6} + (\frac{-1}{6} )\\\\\frac{7}{6} - \frac{1}{6} \\\\\frac{6}{6} = 1$

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