oblicz ulamki a) 7/10+5/10= b) 2 cale 4/7+11 cale 5/7= c) 2 cale 2/5+5 cale 3/5= pliss na teraz daje na naj naj naj najlepsze

[latex] frac{7}{10}+ frac{5}{10}= frac{12}{10} =1 frac{2}{10}=1 frac{1}{5} \ \ 2 frac{4}{7} +11 frac{5}{7} =13 frac{9}{7} =14 frac{2}{7} \ \ 2 frac{2}{5}+5 frac{3}{5} =7 frac{5}{5} =8 [/latex]

a) 7/10+5/10 = 12/10 = 1 2/10 = 1 1/5 b) 2 4/7+11 5/7 = 13 9/7 = 14 2/7 c) 2 2/5+5 3/5 = 7 5/5 = 8