Ответ:
- \(\frac{3}{4}-\frac{2}{5}=\frac{15}{20}-\frac{8}{20}=\frac{7}{20}\)
- \(\frac{1}{3}+\frac{5}{12}=\frac{4}{12}+\frac{5}{12}=\frac{9}{12}=\frac{3}{4}\)
- \(\frac{5}{8}-\frac{3}{16}=\frac{10}{16}-\frac{3}{16}=\frac{7}{16}\)
- \(\frac{1}{10}+\frac{7}{10}=\frac{8}{10}=\frac{4}{5}\)
- \(\frac{9}{17}+\frac{8}{17}=\frac{17}{17}=1\)
