Răspuns:
Explicație pas cu pas:
[4+62/3-21/4*(2/3-2/9)]:45/6+29/4=
[4+20/3-9/4*(6/9-2/9)]:29/6+29/4=
(4+20/3-9/4*4/9):29/6+29/4=
(4+20/3-1):29/6+29/4=
(12/3+20/3-3/3):29/6+29/4=
29/3:29/6+29/4=
29/3*6/29+29/4=
2+29/4=
8/4+29/4=
37/4
