No, it cannot.
Yes, the fraction 57/75 can be reduced. Divide the numerator and denominator by 3, and you get the reduced fraction 19/25 (19 over 25).
38/50 = 19/25
76/100, which can be reduced to 38/50, then to 19/25. So 19/25 reduced. Or 76/100 non reduced
6/25 cannot be reduced.
19/10 is reduced and the answer is 1 and 9/10
19/25
25/21 is already reduced to its lowest terms
The fraction 19/21 cannot be reduced any more.
No.
18 over 38 reduced = 9/19
72 over 100 can be reduced to 18 over 25.
14 over 25 reduced to lowest terms = 14/25 (it is already in simplest form).