17) \(13 \frac{1}{8} - \frac{10}{27} \)

\(13 \frac{1}{8} - \frac{10}{27} = \frac{105}{8} - \frac{10}{27} = \frac{105 \cdot 27}{8 \cdot 27} - \frac{10 \cdot 8}{27 \cdot 8} = \frac{2835}{216} - \frac{80}{216} = \frac{2755}{216} = 12 \frac{187}{216}\)