Răspuns:
[tex]\displaystyle 4\frac{1}{2} \ - \ 1\frac{2}{3} = \ \frac{4 \ \cdot \ 2 \ + 1}{2} \ - \ \frac{1 \ \cdot \ 3 \ + \ 2 }{3} \ = \ \frac{9}{2} \ - \ \frac{5}{3} \ = \ \frac{9 \ \cdot \ 3 }{6} \ - \ \frac{5 \ \cdot \ 2}{6} \ = \ \frac{27}{6} \ - \ \frac{10}{6} \ = \ \frac{17}{6} \ = \boxed{ 2\frac{5}{6} }[/tex]
