Szczegółowe wyjaśnienie:
e)
[tex]5\frac{6}{10} + \frac{8}{10} = \frac{56}{10} + \frac{8}{10} = \frac{56 + 8}{10} = \frac{64}{10} = 6 \frac{4}{10} = 6 \frac{2}{5}[/tex]
f)
[tex]4\frac{2}{5} +1\frac{4}{5} = 4 + 1 + \frac{2}{5} + \frac{4}{5} = 4 + 1 + \frac{2+4}{5} =4 + 1 + \frac{6}{5} = 4 + 1 + 1\frac{1}{5} = 6\frac{1}{5}[/tex]
e)
[tex]\frac{1}{3} + \frac{1}{2} =\frac{1}{3} * \frac{2}{2} + \frac{1}{2} * \frac{3}{3} = \frac{2}{6} + \frac{3}{6} = \frac{5}{6}[/tex]
f)
[tex]\frac{1}{7} + \frac{2}{3} =\frac{1}{7} * \frac{3}{3} + \frac{2}{3} * \frac{7}{7} = \frac{3}{21} + \frac{14}{21} = \frac{17}{21}[/tex]
e)
[tex]1\frac{7}{8} + 3\frac{1}{3} = \frac{15}{8} + \frac{10}{3} = \frac{15}{8} * \frac{3}{3} + \frac{10}{3} * \frac{8}{8} = \frac{45}{24} + \frac{80}{24} = \frac{125}{24} = 5\frac{5}{24}[/tex]
f)
[tex]3\frac{3}{5} + 2\frac{1}{2} = \frac{18}{5} + \frac{5}{2} = \frac{18}{5} * \frac{2}{2} + \frac{5}{2} * \frac{5}{5} = \frac{36}{10} + \frac{25}{10} = \frac{61}{10} =6\frac{1}{10}[/tex]
