Tacó:Tacó:
a=8a‘;b=8b‘⇒a+b=8(a‘+b‘)⇒a‘+b‘=6a=8a‘;b=8b‘⇒a+b=8(a‘+b‘)⇒a‘+b‘=6
(a<b)⇒a‘<b‘(a‘,b‘≠0)(a<b)⇒a‘<b‘(a‘,b‘≠0)
⇒b‘∈{4;5}⇒b‘∈{4;5}
+b‘=4⇒b=32⇒a=16⇒UCLN(a,b)=16(loại)+b‘=4⇒b=32⇒a=16⇒UCLN(a,b)=16(loại)
+b‘=5⇒b=40⇒a=8⇒UCLN(a,b)=8(thoảman)+b‘=5⇒b=40⇒a=8⇒UCLN(a,b)=8(thoảman)
Vậy: a=8;b=40