Szczegółowe wyjaśnienie:
[tex]a) \: 3 \frac{7}{8} + ( \frac{1}{8} + 1 \frac{1}{4} ) = 4 + 1 \frac{1}{4} = 5 \frac{1}{4} [/tex]
[tex]b) \: 2 \frac{4}{13} + 3 \frac{1}{2} + 5 \frac{15}{26} = 2 \frac{8}{26} + 3 \frac{13}{26} + 5 \frac{15}{26} = 5 \frac{21}{26} + 5 \frac{15}{26} = 10 \frac{36}{26} = 11 \frac{10}{26} = 11 \frac{5}{13} [/tex]
[tex]c) \: 3 \frac{1}{4} + 2 \frac{1}{3} + 1 \frac{1}{5} = 3 \frac{3}{12} + 2 \frac{4}{12} + 1 \frac{1}{5} = 5 \frac{7}{12} + 1 \frac{1}{5} = 5 \frac{35}{60} + 1 \frac{12}{60} = 6 \frac{47}{60} [/tex]
[tex]d) \: 1 \frac{1}{6} + 2 \frac{1}{3} + 3 \frac{1}{2} = 1 \frac{1}{6} + 2 \frac{2}{6} + 3 \frac{3}{6} = 6 \frac{6}{6} = 7[/tex]
[tex]e) \: 21 \frac{3}{4} + 7 \frac{2}{5} + 36 \frac{9}{10} = 21 \frac{15}{20} + 7 \frac{8}{20} + 36 \frac{18}{20} = 64 \frac{41}{20} = 66 \frac{1}{20} [/tex]
[tex]f) \: 12 \frac{3}{4} - 6 \frac{5}{6} - 4 \frac{1}{2} + 1 \frac{2}{3} = 12 \frac{18}{24} - 6 \frac{20}{24} - 4 \frac{12}{24} + 1 \frac{16}{24} = 13 \frac{34}{24} - 10 \frac{32}{24} = 3 \frac{2}{24} = 3 \frac{1}{12} [/tex]
W razie pytań pisz śmiało,
Venty
