Question

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

Answer 1

b) 12m + $\frac{7}{10}$+9m+$\frac{2}{10}$=12+9+$\frac{7}{10}$+$\frac{2}{10}$=21m+$\frac{9}{10}$=$\frac{210}{10}$+$\frac{9}{10}$=$\frac{219}{10}$ (219/10)