Answer
$\dfrac{2x+1}{8}$
Work Step by Step
The expressions are not similar. Make them similar by using the LCD, which is 8, to have:
$\\=\frac{1}{8} +\frac{x(2)}{4(2)}
\\=\frac{1}{8}+\frac{2x}{8}
\\=\frac{2x+1}{8}$
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