1)2,(4)=2 intregi 4/9= 22/9
a,b ip cu 3 si 22/9
3a=22b/9=k
a=k/3
22b=9k
b=9k/22
ma=(a+b)/2=263
a+b=263*2
a+b=526
k/3+9k/22 =526 aducem la acelasi numitor
22k+27k =34716
49k=34716
k= 34716/49
a=34716/49 /2= 34716/49 *1/2= 17358/49
b= 9*34716/49/22= 9*34716/49 *1/22= 9*1578/49= 14202/49
