Zad. 1 | Zamień na dodawanie i oblicz.
[tex]a) \ 5 \cdot \frac{2}{3} = \frac{2}{3} + \frac{2}{3} + \frac{2}{3} + \frac{2}{3} + \frac{2}{3} = \frac{10}{3} = \boxed{3 \frac{1}{3}}[/tex]
[tex]b) \ 4 \cdot \frac{6}{7} = \frac{6}{7} + \frac{6}{7} + \frac{6}{7} + \frac{6}{7} = \frac{24}{7} = \boxed{3\frac{3}{7}}[/tex]
[tex]c) \ 4 \cdot \frac{3}{4} = \frac{3}{4} + \frac{3}{4} + \frac{3}{4} + \frac{3}{4} = \frac{12}{4} = \boxed{3}[/tex]
[tex]d) \ 3 \cdot \frac{4}{7} = \frac{4}{7} + \frac{4}{7} + \frac{4}{7} = \frac{12}{7} = \boxed{1\frac{5}{7}}[/tex]
