The result of dividing 27 and 30 is a fraction. The concept of GCF is not relevant for fractions.
The GCF is 3.
The GCF is 3.
The GCF is 3.
The greatest common divisor of 27 and 30 is 3.
The GCF is 1.
The GCF is 3.
The GCF is 3.3
The GCF is 1.
The GCF of 14 and 48 is 2. The GCF of 81 and 135 is 27. The GCF of all four is 1.
The GCF is 1.
GCF(27, 30, 36) = 3