Use our free GCF of Fractions Calculator tool to compute the GCF of 455/664, 386/645 i.e 1/428280 easily. The following is the detailed procedure to determine the greatest common factor of fractions 455/664, 386/645.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 455/664,386/645
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 455/664,386/645, numerators are 455,386
Denominators are 664,645
The GCF of 455,386 is 1 .
LCM of 664,645 is 428280.
The greatest common factor of 455/664,386/645 = [GCF of 455,386]/[LCM of 664,645]= 1/428280
Therefore, the GCF of 455/664,386/645 is 1/428280.
To find the highest common factor of 455,386, we have to find the factors of both numbers and list the highest common factor.
The factors of 455 are 1, 5, 7, 13, 35, 65, 91, 455
The factors of 386 are 1, 2, 193, 386
The HCF of 455,386 is 1.
Lets's calculate GCF of 455,386
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 455
:1,5,7,13,35,65,91,455
Now, list down the factors of 386
:1,2,193,386
Greatest Common Factor
We found the factors 455,386 . The biggest common factor number is the GCF number.
So the greatest common factor 455,386 is 1.
Lets's calculate LCM of 664,645
Given numbers has no common factors except 1. So, there LCM is their product i.e 428280
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/428280
Therefore, the GCF of Fractions 455/664,386/645 is 1/428280
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 664,645 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(664,645) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(664,645) x common factors =1 x 1 = 1
LCM(664,645) = ( 664 × 645 ) / 1
LCM(664,645) = 428280 / 1
LCM(664,645) = 428280
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 455,386?
The HCF of 455,386 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 455/664, 386/645?
Answer: GCF of Numerators as per given numbers 455/664, 386/645 is
GCF of Numerators i.e. for 455,386 is 1
LCM of denominators i.e. for 664,645 is 428280.
Thus, GCF of Fractions is 1/428280.Finally, GCF of Fractions for 455/664, 386/645 is 1/428280.