Răspuns:
[tex]a)(6.75 - 4.5 \times 1 \frac{2}{3} ) \times ( - 1 \frac{1}{3} ) = \\ ( \frac{27}{4} - \frac{9}{2} \times \frac{5}{3} ) \times ( - \frac{4}{3} ) = \\ ( \frac{27}{4} - \frac{15}{2} ) \times ( - \frac{4}{3} ) = \\ ( \frac{27}{4} - \frac{30}{4} ) \times ( - \frac{4}{3} ) = \\ ( - \frac{3}{4} ) \times ( - \frac{4}{3} ) = - 1[/tex]
