1) a - (b - c) = 123 - (91 - 26,1) = 123 - 64,9 = 58,12) a - (b - c) = 7,3 - (1,5 - 6,6) = 7,3 - (-5,1) = 7,3 + 5,1 = 12,43) a - (b - c) = -1/12 - (-3/8 - 1/6) = -1/12 - (-11/24) = -1/12 + 11/24 = 11/24 - 2/24 = 9/24 = 3/84) a - (b - c) = -9 3/20 - (-8 3/4 - 5,4) = -9 3/20 - (-13 1/4) = -9 3/20 + 13 1/4 = -9 3/20 + 13 5/20 = 4 2/20 = 4 1/10
1) a - (b - c) = 123 - (91 - 26,1) = 123 - 64,9 = 58,1
2) a - (b - c) = 7,3 - (1,5 - 6,6) = 7,3 - (-5,1) = 7,3 + 5,1 = 12,4
3) a - (b - c) = -1/12 - (-3/8 - 1/6) = -1/12 - (-11/24) = -1/12 + 11/24 = 11/24 - 2/24 = 9/24 = 3/8
4) a - (b - c) = -9 3/20 - (-8 3/4 - 5,4) = -9 3/20 - (-13 1/4) = -9 3/20 + 13 1/4 = -9 3/20 + 13 5/20 = 4 2/20 = 4 1/10