8/9
81/93 = 27/31 by dividing the numerator and denominator by 3
No. 5/12 doesn't reduce to anything.
81/108 = 27/36 = 9/12 = 3/4
No, because if you reduce 12/36 then you get 3 and if you reduce 5/7 you get a decimal, not 3.
81/120 = 27/40
8/9
81/93 = 27/31 by dividing the numerator and denominator by 3
No. 5/12 doesn't reduce to anything.
12 over 77
4/27
81/108 = 27/36 = 9/12 = 3/4
It's 0.3849 (rounded)
2/3
3/4
To 6/19
It is: 3/4