Zadanko 5:
a) [tex]\frac{5}{6} +2\frac{1}{9} =\frac{15}{18} +2\frac{2}{18} =2\frac{17}{18}[/tex]
b)[tex]1\frac{2}{5} +2\frac{3}{4} =1\frac{8}{20} +2\frac{15}{20} =3\frac{23}{20}=4\frac{3}{20}[/tex]
c) [tex]\frac{2}{15} +3\frac{1}{6} = \frac{4}{30} +3\frac{5}{30} =3\frac{9}{30}[/tex] po skróceniu na 3 to [tex]3\frac{3}{10}[/tex]
d) [tex]5\frac{5}{12} +1\frac{4}{9} = 5\frac{15}{36} + 1\frac{16}{36} = 6\frac{31}{36}[/tex]
e) [tex]4\frac{7}{8} + 7\frac{5}{6} = 4\frac{21}{24} + 7\frac{20}{24} = 11\frac{41}{24}=12\frac{17}{24}[/tex]
f) [tex]13\frac{1}{15}+ 6\frac{2}{25} =13\frac{5}{75}+ 6\frac{6}{75} = 19\frac{11}{75}[/tex]
