Obliczenia
[tex]2\frac{4}{5}+\frac{1}{4}=2\frac{16}{20}+\frac{5}{20}=2\frac{21}{20}=3\frac{1}{20}\\\\1\frac{3}{4}-\frac{3}{8}=1\frac{6}{8}-\frac{3}{8}=1\frac{3}{8}\\\\2\frac{2}{9}\cdot1\frac{3}{5}=\frac{\not20^4}{9}\cdot\frac{8}{\not5_1}=\frac{32}{9}=3\frac{5}{9}\\\\2\frac{2}{5}:1\frac{1}{5}=\frac{12}{5}:\frac{6}{5}=\frac{\not12^2}{\not5_1}\cdot\frac{\not5^1}{\not6_1}=2[/tex]
