a)[tex]\frac{5}{7} +\frac{5}{7} =\frac{10}{7} =1\frac{3}{7}[/tex]
b)[tex]\frac{6}{11}+ \frac{9}{11} =\frac{15}{11}=1 \frac{4}{11}[/tex]
c)[tex]\frac{4}{5}+ 2\frac{4}{5} =2\frac{8}{5} =3\frac{3}{5}[/tex]
d)[tex]5\frac{17}{18} +\frac{5}{18} =5\frac{22}{18} =6\frac{4}{18}[/tex]
e)[tex]6\frac{3}{10} +7\frac{9}{10} =13\frac{12}{10} =14\frac{2}{10}[/tex]
f)[tex]6 \frac{7}{8} +4\frac{5}{8} =10\frac{12}{8} =11\frac{4}{8}[/tex]
g) [tex]\frac{3}{8}+ \frac{5}{8}+ \frac{7}{8} =\frac{15}{8}=1 \frac{7}{8}[/tex]
h) [tex]\frac{7}{13} +\frac{8}{13} +\frac{12}{13}= \frac{27}{13} =2\frac{1}{13}[/tex]
i)[tex]3\frac{3}{14}+\frac{3}{14}+ \frac{9}{14} =3\frac{15}{14}= 4\frac{1}{14}[/tex]
j)[tex]\frac{5}{7}+ 4\frac{6}{7}+ \frac{1}{7} =4\frac{12}{7} =5\frac{5}{7}[/tex]
k) [tex]12\frac{3}{11} +1\frac{5}{11}=6 \frac{9}{11}= 19\frac{17}{11} =20\frac{6}{11}[/tex]
l) [tex]15\frac{5}{12} +5\frac{5}{12}+6 \frac{11}{12}=26 \frac{21}{12} =27\frac{9}{12}[/tex]
Miłego dnia:)
