[tex]7 \frac{2}{4} + \frac{1}{8} = 7 \frac{4}{8} + \frac{1}{8} = 7 \frac{5}{8} [/tex]
[tex]5 \frac{3}{9} + 4 \frac{4}{6} = 5 \frac{6}{18} + 4 \frac{12}{18} = 9 \frac{18}{18} = 10[/tex]
[tex]3 \frac{4}{5} - \frac{2}{6} = 3 \frac{24}{30} - \frac{10}{30} = 3 \frac{14}{30} = 3 \frac{7}{15} [/tex]
Myślę że pomogłem ;)
