Ответ:
- \(0.8-\frac{5}{7}=\frac{4}{5}-\frac{5}{7}=\frac{28-25}{35}=\frac{3}{35}\).
- \(0.36+\frac{8}{15}=\frac{9}{25}+\frac{8}{15}=\frac{27}{75}+\frac{40}{75}=\frac{67}{75}\).
- \(7\frac{7}{8}-3.18=7.875-3.18=4.695\).
- \(4.75-2\frac{3}{16}=4\frac{12}{16}-2\frac{3}{16}=2\frac{9}{16}\).
