- 20 - 38 - (-53) = -58 + 53 = -5
91 - 38 = 53
53
53 minus 20% of 53 is 42.4
-53
Because of the three minus signs, i.e. an odd number of minus signs, the answer is negative.
53 + 38 = 91
53
71 - 53 = 18
(-53) - 17 = -70
127 - 53 = 74
It is: 100-53 = 47
17/25 − 3/20 = 265/500. This simplfies further to 53/100