Răspuns:
[tex]a) = 1.4 + | - \frac{5}{5} + \frac{2}{5} | = \\ = 1.4 + | \frac{ - 3}{5} | = 1.4 + \frac{3}{5} = \frac{7}{5} + \frac{3}{5} = \frac{10}{5} = 2[/tex]
[tex]b) = - | - 0.8| + |3.74| = - 0.8 + 3.74 = + 2.94[/tex]
[tex]c) = | \frac{3}{3} - \frac{1}{3} | + | \frac{ - 5}{12} + \frac{9}{12} | = | \frac{2}{3} | + | \frac{4}{12} | = \frac{2}{3} + \frac{4}{12} = \frac{2}{3} + \frac{1}{3} = \frac{3}{3} = 1[/tex]
[tex] d) = | \frac{13 - 1}{9} + \frac{2}{3}| - | - \frac{ 26 - 2}{9} - \frac{1}{3} | = \\ = | \frac{12}{9} + \frac{2}{3} | - | - \frac{24}{9} - \frac{1}{3} | = \\ = | \frac{4}{3} + \frac{2}{3} | - | - \frac{8}{3} - \frac{1}{3} | = | \frac{6}{3} | - | \frac{ - 9}{3} | = |2| - | - 3| = 2 - 3 = - 1[/tex]
