Obliczenia
[tex](2\frac{2}{9}:1\frac{3}{7})\cdot1,8=(\frac{20}{9}:\frac{10}{7})\cdot1,8=\\\\=(\frac{\not20^2}{9}\cdot\frac{7}{\not10_1})\cdot1,8=\frac{14}{9}\cdot1,8=14\cdot0,2=\boxed{2,8}[/tex]