Odpowiedź:
[tex]a)\ \ \frac{1}{3}+0,25=\frac{1}{3}+\frac{1}{4}=\frac{4}{12}+\frac{3}{12}=\frac{7}{12}\\\\b)\ \ 0,75-\frac{4}{7}=\frac{3}{4}-\frac{4}{7}=\frac{21}{28}-\frac{16}{28}=\frac{5}{28}\\\\c)\ \ 4\frac{1}{3}:0,26=\frac{13}{3}:\frac{13}{50}=\frac{\not13}{3}\cdot\frac{50}{\not13}=\frac{50}{3}=16\frac{2}{3}\\\\d)\ \ 3,6\cdot1\frac{7}{9}=\frac{36}{10}\cdot\frac{16}{9}=\frac{\not18^2}{5}\cdot\frac{16}{\not9_{1}}=\frac{32}{5}=6\frac{2}{5}[/tex]
