by dividing by a common number for the numerator and denomenator (the answer is 1/2)
10/11
120/100 = 6/5 aka 1.2
34/120
120/6 is an integer, not a fraction so there is no sensible way to represent is as a mixed fraction.
81/120 = 27/40
what is the fraction 120 over 8 written as a decimal
120/150 = 4/5
103 over 120 is already in lowest terms as a fraction.
40 over 9
100
Yes, as 57/120 can be reduced to 19/40.