$-2 rac{3}{5} = - rac{13}{5} - rac{8}{5} = - rac{18}{5}$

$1.2 - (- rac{3}{5}) - 1 = $

$-rac{17}{20} + (-rac{5}{6}) + rac{3}{5} = $

$(+rac{5}{21}) - rac{1}{4} - (-rac{3}{7}) = $

$-5 rac{1}{3} + 3 rac{1}{3} - 2 rac{3}{4} - 1 = $

$(-rac{7}{18}) - (-rac{11}{12}) + (-rac{10}{36}) = $