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Cât face 3 supra 10 : la 6 supra 10 + 0,(4). M-a ajutați

Răspuns :

[tex] \frac{3}{10} \div \frac{6}{10} + 0.(4) = \frac{3}{10} \times \frac{10}{6} + \frac{4}{9} [/tex]

[tex] = \frac{3}{6} + \frac{4}{9} = \frac{1}{2} + \frac{4}{9} = \frac{9}{18} + \frac{8}{18} [/tex]

[tex] = \frac{9 + 8}{18} = \frac{17}{18} [/tex]