а) 8 - 21 = -13б) -14 - (-26) = -14 + 26 = 12в) -5.4 - 1.6 = -7г) 0 - 3.11 = -3.11д) 7/12 - 2 1/8 = 7/12 - 17/8 = (7/12) - (34/24) = (7/12) - (17/12) = -10/12 = -5/6е) -1/4 - (-5.8) = -1/4 + 5.8 = -1/4 + 23/4 = 22/4 = 11/2
а) 8 - 21 = -13
б) -14 - (-26) = -14 + 26 = 12
в) -5.4 - 1.6 = -7
г) 0 - 3.11 = -3.11
д) 7/12 - 2 1/8 = 7/12 - 17/8 = (7/12) - (34/24) = (7/12) - (17/12) = -10/12 = -5/6
е) -1/4 - (-5.8) = -1/4 + 5.8 = -1/4 + 23/4 = 22/4 = 11/2