5.385 Выполните действия: 1) 7\frac{6}{22}+5\frac{5}{22}; 2) 6\frac{14}{15}-3\frac{4}{15}; 3) \frac{22}{36}-\frac{11}{36}+\frac{4}{36}; 4) \frac{12}{75}+\frac{14}{75}-\frac{1}{75}

Решим примеры:

1. $$7\frac{6}{22}+5\frac{5}{22} = (7+5)+\frac{6+5}{22}=12+\frac{11}{22}=12\frac{1}{2}$$
2. $$6\frac{14}{15}-3\frac{4}{15} = (6-3)+\frac{14-4}{15}=3+\frac{10}{15}=3\frac{2}{3}$$
3. $$\frac{22}{36}-\frac{11}{36}+\frac{4}{36}=\frac{22-11+4}{36}=\frac{15}{36}=\frac{5}{12}$$
4. $$\frac{12}{75}+\frac{14}{75}-\frac{1}{75}=\frac{12+14-1}{75}=\frac{25}{75}=\frac{1}{3}$$

Ответ: 1) $$12\frac{1}{2}$$, 2) $$3\frac{2}{3}$$, 3) $$\frac{5}{12}$$, 4) $$\frac{1}{3}$$