1.a.1/2 , 2/4, 3/6, 4/8, 5/10
b.3/1, 6/2, 9/3
c.1/3, 3/5, 5/7, 7/9
d. 2/1, 4/1, 6/1, 8/1, 10/1, 4/2, 6/2, 8/2, 10/2, 4/3, 6/3, 8/3, 10/3, 6/4, 8/4, 10/4, 6/5, 8/5, 10/5, 8/6, 10/6, 8/7, 10/7, 10/9
2. a) 2 timpi
b) Patrimea, 1 timp
3. 3/4y=6. y=6x4/3=8 m
4.180=2/5y y=5x180/2=450 l
5. 648x3/9=216 visini
648-216=432 pomi ramasi
432x3/6=216 caisi
432-216=216 pomi ramasi
216/4=54 pruni
216-54=162 ciresi