Odpowiedź:
a)
[tex]1\frac{1}{3} + \frac{4}{5} = \frac{4}{3} +\frac{4}{5}= \frac{32}{15}[/tex]
b)
[tex]2\frac{5}{7} + 1\frac{3}{8} =( 2+1) + ( \frac{5}{7} + \frac{3}{8} ) = 3+1\frac{5}{56} = 4\frac{5}{56}[/tex]
c)
[tex]\frac{5}{9} + \frac{5}{6} = \frac{10+15}{18} = \frac{25}{18}[/tex]
d)
[tex]2\frac{3}{10} + 3\frac{3}{4} = (2+3) + \frac{3}{10} +\frac{3}{4} )= 5+\frac{21}{20} = 5+1 \frac{1}{20} = 6+\frac{1}{20} = 6\frac{1}{20}[/tex]
e)
[tex]2\frac{4}{5}+\frac{3}{7} = \frac{14}{5} +\frac{3}{7} = \frac{113}{35} = 3\frac{8}{35}[/tex]
Szczegółowe wyjaśnienie:
