1. Выполните умножение 1) \(\frac{5}{18}\cdot \frac{4}{15}\) 2) \(6\frac{3}{4}\cdot 1\frac{11}{45}\) 3) \(\frac{11}{18}\cdot 36\)

1) \(\frac{5}{18}\cdot \frac{4}{15}=\frac{5\cdot 4}{18\cdot 15}=\frac{20}{270}=\frac{2}{27}\)

2) \(6\frac{3}{4}\cdot 1\frac{11}{45}=\frac{6\cdot 4 + 3}{4} \cdot \frac{1\cdot 45 + 11}{45}=\frac{27}{4}\cdot \frac{56}{45}=\frac{27\cdot 56}{4\cdot 45}=\frac{3\cdot 14}{1\cdot 5}=\frac{42}{5}=8\frac{2}{5}\)

3) \(\frac{11}{18}\cdot 36=\frac{11\cdot 36}{18}=\frac{11\cdot 2}{1}=22\)

Ответ: 1) \(\frac{2}{27}\); 2) \(8\frac{2}{5}\); 3) 22