In order to determine which from the given answer choices are negative numbers, simplify the given expressions:
A) 1.1 + (-2.2) = 1.1 - 2.2 = -1.1 It is a negative number
B) -3/4 - (-1/4) = -3/4 + 1/4 = (-3+1)/4 = -2/4 = -1/2 It is a negative number
C) -4.5- (-5) = -4.5 + 5 = 0.5 It is a positive number
D) -1/8 + (-5/8) = -1/8 - 5/8 = -6/8 = -3/4 It is a negative number