Răspuns:
(a,b)~d.p(5,8). a-b=45
a*5=b*8
a=k=k/5
b=k=k/8
k/5*8=8k/40
k/8=*5=5k/40
8k/40-5k/40=3k
k=45:3
k=15
b=15*8=120
a=15*5=75
120-75=45
