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ex.2 va rog!!!dau coroana

Ex2 Va Rogdau Coroana class=

Răspuns :

[tex] \frac{4}{9} + \frac{3}{9} - \frac{5}{9} = \frac{4+3-5}{9} = \frac{2}{9} [/tex]
[tex]( \frac{8}{12} - \frac{4}{12}) + ( \frac{6}{12} - \frac{3}{12} ) = \frac{8-4}{9} + \frac{6-3}{9} = \frac{2}{9} + \frac{3}{9} = \frac{5}{9} [/tex]