It is already simplified and in its lowest terms as -51/70
No.
it cannot be simplified because there is no common factor of (5) and (70)
17/30
3/7
because 51 is a composite number and divisible by 3, 51 over 54 can be reduced to 17 over 18
51 and 40 are coprime so the ratio 51/40 cannot be simplified.
No.
It is: 30/51 = 10/17
it cannot be simplified because there is no common factor of (5) and (70)
51/48 = 3/4
51/100 cannot be simplified further.
17/30
3/7
because 51 is a composite number and divisible by 3, 51 over 54 can be reduced to 17 over 18
It is: 91/70 = 13/10 simplified
It is: 51/9 = 17/3 simplified
It is: 51/300 = 17/100 simplified