Answer :

[tex]\left(\frac{5}{16}+\frac{7}{8}\right):2=\left(\frac{5}{16}+\frac{14}{16}\right):\frac{2}{1}=\frac{5+14}{16}\cdot\frac{1}{2}=\frac{19}{16}\cdot\frac{1}{2}=\frac{19}{32}[/tex]

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