Ответ:
\(\frac{3}{4}+5\frac{9}{10}=\frac{133}{20}\), а \(7\frac{2}{3}-\frac{1}{8}=\frac{181}{24}\).
\(\frac{133}{20}+\frac{181}{24}=\frac{1703}{120}=14\frac{23}{120}\).
Ответ: \(14\frac{23}{120}\).
\(\frac{3}{4}+5\frac{9}{10}=\frac{133}{20}\), а \(7\frac{2}{3}-\frac{1}{8}=\frac{181}{24}\).
\(\frac{133}{20}+\frac{181}{24}=\frac{1703}{120}=14\frac{23}{120}\).
Ответ: \(14\frac{23}{120}\).