[tex] - 6.19 + ( - 1 \frac{1}{2} + 5.19) - ( - 2 \frac{3}{5} - 3.8 + 1 \frac{9}{10} ) = - 6.19 - 1.5 + 5.19 + 2.6 + 3.8 - 1.9 = - 1 - 1.5 + 2.6 + 3.8 - 1.9 = 6.4 - 4.4 = 2[/tex]