Use our free GCF of Fractions Calculator tool to compute the GCF of 628/687, 393/605 i.e 1/415635 easily. The following is the detailed procedure to determine the greatest common factor of fractions 628/687, 393/605.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 628/687,393/605
To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by
GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators
In the fractions 628/687,393/605, numerators are 628,393
Denominators are 687,605
The GCF of 628,393 is 1 .
LCM of 687,605 is 415635.
The greatest common factor of 628/687,393/605 = [GCF of 628,393]/[LCM of 687,605]= 1/415635
Therefore, the GCF of 628/687,393/605 is 1/415635.
To find the highest common factor of 628,393, we have to find the factors of both numbers and list the highest common factor.
The factors of 628 are 1, 2, 4, 157, 314, 628
The factors of 393 are 1, 3, 131, 393
The HCF of 628,393 is 1.
Lets's calculate GCF of 628,393
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 628
:1,2,4,157,314,628
Now, list down the factors of 393
:1,3,131,393
Greatest Common Factor
We found the factors 628,393 . The biggest common factor number is the GCF number.
So the greatest common factor 628,393 is 1.
Lets's calculate LCM of 687,605
Given numbers has no common factors except 1. So, there LCM is their product i.e 415635
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/415635
Therefore, the GCF of Fractions 628/687,393/605 is 1/415635
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 687,605 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(687,605) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(687,605) x common factors =1 x 1 = 1
LCM(687,605) = ( 687 × 605 ) / 1
LCM(687,605) = 415635 / 1
LCM(687,605) = 415635
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 628,393?
The HCF of 628,393 is 1
2. What is the GCF of a fraction?
The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.
3. How to find GCF in Fractions?
Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.
4. What is the GCF of Fractions for 628/687, 393/605?
Answer: GCF of Numerators as per given numbers 628/687, 393/605 is
GCF of Numerators i.e. for 628,393 is 1
LCM of denominators i.e. for 687,605 is 415635.
Thus, GCF of Fractions is 1/415635.Finally, GCF of Fractions for 628/687, 393/605 is 1/415635.