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Obliczenia
[tex]a] \ 1\frac{1}{3}+\frac{4}{5}=1\frac{5}{15}+\frac{12}{15}=1\frac{17}{15}=2\frac{2}{15}\\\\b] \ 2\frac{5}{7}+1\frac{3}{8}=2\frac{40}{56}+1\frac{21}{56}=3\frac{61}{56}=4\frac{5}{56}\\\\c] \ \frac{5}{9}+\frac{5}{6}=\frac{10}{18}+\frac{15}{18}=\frac{25}{18}=1\frac{7}{18}\\\\d] \ 2\frac{3}{10}+3\frac{3}{4}=2\frac{6}{20}+3\frac{15}{20}=5\frac{21}{20}=6\frac{1}{20}\\\\e] \ 2\frac{4}{5}+\frac{3}{7}=2\frac{28}{35}+\frac{15}{35}=2\frac{43}{35}=3\frac{8}{35}[/tex]
Pozdrawiam!
a) 1 1/3+4/5=1 5/15+12/15=1 17/15=2 2/15
b) 2 5/7+1 3/8=2 40/56+1 21/56=3 61/56=4 5/56
c) 5/9+5/6=10/18+15/18=25/18=1 7/18
d) 2 3/10+3 3/4=2 6/20+3 15/20=5 21/20=6 1/20
e) 2 4/5+3/7=2 28/35+15/35=2 43/35=3 8/35
