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Efectuati: 2/3-1/4 5/4-1/2 5/6-1/3 7/2-1/5 1-2/5 2/5-1/2 11/4-3/2 7/6-3/4 11/12-5/18 13/20-7/30 37/45-17/30    b)Dintr-un balot de panza itr-o zi s-a vandut dimineata 12 m si inca 7/10 iar dupa amiaza 9m si inca 2/10.Aflati lungimea totala a panzei vanduta in aceia zi

Răspuns :

Gabi9id
b) 12m + [tex] \frac{7}{10}[/tex]+9m+[tex] \frac{2}{10} [/tex]=12+9+[tex] \frac{7}{10} [/tex]+[tex] \frac{2}{10} [/tex]=21m+[tex] \frac{9}{10} [/tex]=[tex] \frac{210}{10}[/tex]+[tex] \frac{9}{10} [/tex]=[tex] \frac{219}{10}[/tex] (219/10)

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