Răspuns:
[tex]a) \: \frac{2}{10} + \frac{4}{10} = \frac{6}{10} \\ \\ b) \: \frac{2}{10} + \frac{5}{10} = \frac{7}{10} \\ \\ c) \: \frac{2}{10} + \frac{1}{10} = \frac{3}{10} \\ \\ d) \: \frac{2}{10} + \frac{6}{10} = \frac{8(2}{10} = \frac{4}{5} \\ \\ e) \: \frac{2}{10} + \frac{8}{10} = \frac{10}{10} = 1 \\ \\ f) \: \frac{2}{10} + \frac{7}{10} = \frac{9}{10} \\ \\ g) \: \frac{2}{10} + \frac{3}{10} = \frac{5(5}{10} = \frac{1}{2} \\ \\ h) \: \frac{2}{10} + \frac{2}{10} = \frac{4(2}{10} = \frac{2}{5} [/tex]
Unde ai nelămuriri, să mă întrebi!
