\(\frac{a}{b}x4+\frac{1}{6}=\frac{17}{6}\)
\(\frac{a}{b}x4=\frac{17}{6}-\frac{1}{6}\)
\(\frac{a}{b}x4=\frac{16}{6}=\frac{8}{3}\)
\(\frac{a}{b}=\frac{8}{3}:4\)
\(\frac{a}{b}=\frac{8}{12}=\frac{2}{3}\)
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