Răspuns:
n=4/3-4/3·[³4/3-1/9]:44/9=4/3-4/3·11/9·9/44=4/3-4/3·1/4=4/3-1/3=3/3=1
0,(3)=1/3;. 4 8/9=4·9+8/9=44/9
