a)
[tex]2 \frac{1}{6} + \frac{7}{10} + 1 \frac{2}{5} = 2 \frac{5}{30} + \frac{21}{30} + 1 \frac{12}{30} = 3 \frac{38}{30} = 4 \frac{8}{30} = 4 \frac{4}{15} [/tex]
b)
[tex]1 \frac{7}{8} + \frac{1}{3} + 2 \frac{5}{6} = 1 \frac{21}{24} + \frac{8}{24} + 2 \frac{20}{24} = 3 \frac{49}{24} = 5 \frac{1}{24} [/tex]
c)
[tex]2 \frac{7}{12} + 1 \frac{1}{15} + \frac{1}{2} = 2 \frac{35}{60} + 1 \frac{4}{60} + \frac{30}{60} = 3 \frac{69}{60} = 4 \frac{9}{60} = 4 \frac{3}{20} [/tex]
Myślę że pomogłem ;)
