Răspuns:
Explicație pas cu pas:
0,6 = 6/10
1 1/9 = 10/9
2,(4) = (24 - 2)/9 = 22/9
6/10*10/9 - 7/9 : (8/4 - 1/4) + 22/9
= 6/9 - 7/9 : 7/4 + 22/9
= 6/9 - 7/9*4/7 + 22/9
= 6/9 - 4/9 + 22/9
= 24/9 = 8/3
6/10*10/9-7/9*4/7+22/9= 6/9-4/9+22/9= 24/9=8/3=2,66
