105/147 = 5/7
The greatest common factor of 105 and 147 is 21
735
21
147
The GCF of 105 and 147 is 21. Dividing 21 into each of these gives 5 and 7 respectively. These are not further divisible by any number except for 1.
0.5986
147
7
3 divided by 147 is ~0.0204081632653
The GCF is 21.
147