oi 3/7 /........../.........../............./______/______/______/_______/
R1 miei 4/6 /........../......../......./........./_____/____/
berbeci /_____16__/
R1=16:2x6=8x6=48
miei=8x4=32; sau 48:6x4=32
miei=32
turma=48:4x7=12x7=84
oi=12x3=36 ; sau 84:7x3=12x3=36
oi=36
proba; 36+32+16=84