Question

Daca (a,12)=6 si [a,12]=60 atunci a=...
Va rog mult,rezolvare cat mai explicita si completa! :)

Answer 1

(a,12) x [a,12]=a x 12 asa zice teoria
deci
a x 12=360
a=30
(30,12)=6
[30,12]=60 deci solutia e ok

Answer 2

Se aplica formula:
[a,b]*(a,b)=a*b
6*60=a*12|:6
a*2=60|:2
a=30