The concept of common factors makes no sense for fractions. This is because every non-zero fraction can divide every other fraction. For example 27/4 = 5/7*189/20 and 9/16 = 5/7*63/80 so 5/7 is a common factor.
The GCF refers to integers, not fractions.
The GCF is 1 .
The LCM is 144 .
The GCF of 108 and 144 is 36.
1 and 144, respectively.
The GCF is 1.
The GCF is 1.
The GCF is 1. The LCM is their product.
The greatest common factor is 1.
16
The GCF is 1.
The GCF is 4.
The common factors of 4 and 16 are 1, 2, and 4.
The GCF is 4.
The GCF is 4.
The GCF is 4.
The GCF of 16 and 72 is 8. 16/72 can be reduced to 2/9
The GCF is 16.
The GCF is 4.
The GCF is 4.
The GCF is 1.
The GCF is 4.