Witam:)
a)
[tex]\frac{3}{5}+\frac{1}{5} =\frac{4}{5}[/tex]
[tex]\frac{2}{6}+\frac{4}{6} =\frac{6}{6} =1[/tex]
[tex]\frac{2}{7} +\frac{3}{7} =\frac{5}{7}[/tex]
b)
[tex]\frac{3}{8} +\frac{1}{8} =\frac{4}{8} =\frac{1}{2}[/tex]
[tex]\frac{8}{10}+\frac{1}{10} =\frac{9}{10}[/tex]
[tex]\frac{4}{9} +\frac{2}{9} =\frac{6}{9} =\frac{2}{3}[/tex]
c)
[tex]\frac{6}{12} +\frac{3}{12} +\frac{1}{12} =\frac{10}{12} =\frac{5}{6}[/tex]
[tex]\frac{2}{10} +\frac{3}{10} +\frac{4}{10} =\frac{9}{10}[/tex]
[tex]\frac{3}{13} +\frac{5}{13} +\frac{7}{13} =\frac{15}{13} =1\frac{2}{13}[/tex]
d)
[tex]\frac{2}{3} +2=\frac{2}{3} +\frac{6}{3} =\frac{8}{3} =2\frac{2}{3}[/tex]
[tex]\frac{2}{5} +4=\frac{2}{5} +\frac{20}{5} =\frac{22}{5} =4\frac{2}{5}[/tex]
[tex]8+\frac{3}{8} =\frac{64}{8} +\frac{3}{8} =\frac{67}{8} =8\frac{3}{8}[/tex]
pozdrawiam :)
