The greatest common denominator (GCD) refers to a denominator that is COMMON to two or more numbers. You have only one number in the question! The greatest denominator of any number is itself.
You need at least two numbers to find a GCf.
The GCD of 36, 60 is 12.
GCD: 3
It is: 60.
15
The GCF is 15.
The GCF is 12.
60=6*10, 126=6*21, so their gcd is 6.I hope ot is not too late for your homework.
The GCD of 42 and 60 is 6.
15
The GCF is 12.
15
The GCF is 20.