А) - 5/8 - (- 7/12) = - 5/8 + 7/12 = 7/12 - 5/8 = 14/24 - 15/24 = - 1/24
б) 38 - (- 16) = 38 + 16 = 54
в) - 7 7/24 - 4 13/16 = - 7 14/48 + (- 4 39/48) = - 11 53/48 = - 12 5/48
г) 5/9 - 2 = 5/9 - 18/9 = - 13/9 = - 1 4/9
д) - 18,9 - 36,4 = - 18,9 + (- 36,4) = - 55,3
е) - 3 3/14 - (- 2 5/6) = - 3 3/14 + 2 5/6 = 2 5/6 - 3 3/14 = 2 35/42 - 3 9/42 = 119/42 - 135/42 = - 16/42 = - 8/21