Решим данные примеры:
- $$2\frac{7}{18}+3\frac{5}{18}=(2+3)+(\frac{7}{18}+\frac{5}{18})=5+\frac{12}{18}=5\frac{12}{18}=5\frac{2}{3}$$
- $$1\frac{13}{24}+5\frac{7}{24}=(1+5)+(\frac{13}{24}+\frac{7}{24})=6+\frac{20}{24}=6\frac{20}{24}=6\frac{5}{6}$$
- $$8\frac{5}{27}+\frac{7}{27}=8+(\frac{5}{27}+\frac{7}{27})=8+\frac{12}{27}=8\frac{12}{27}=\frac{4}{9}$$
Ответ: 1) $$5\frac{2}{3}$$, 2) $$6\frac{5}{6}$$, 3) $$\frac{4}{9}$$