6/5=n/15
6x15=5n
n=90:5
n=18
36/27=n/3
27n=36x3
n=108:27
n=4
6/7=n/35
7n=35x6
n=210:6
n=35
12/8=n-2/2
8x(n-2)=12x2
8n-16=24
8n=24+16
8n=40
n=5
2/3=2n=2/3n+3
2(3n+3)=3(2n+2)
6n+6=6n+6
impartim totul cu 6
n=1
nla2/5=10/2
2nla2=5x10
2nla2=50
impartim cu 2
nla2=25
nla2=5la2
n=5
36/24=2/3nla2
3nla2x36=2x24
3nl2x36=48
108nla2=48
impartim prin 12
9nla2=4
nla2=4/9
nla2=2la2/3la2
n=2/3
9/2nla2=1/50
2nla2=9x50
2nla2=450
impartim cu 2
nla2=225
nla2=15la2
n=15