l-----------------l-l---------------l toate bomboanele
.........................
1/2 +3maria
l----l-l---l----l rest
........
1/3+3fra
l---l----l rest
3
3 -ramase
3+3=6 (2/3)
6:2=3 (1/3)
3+3=6 (fratele)
3x3=9 rest
9+3=12 (1/2)
12+3=15 maria
12x2=24 (nr total de bomboane)