Use our free GCF of Fractions Calculator tool to compute the GCF of 408/318, 639/465 i.e 3/49290 easily. The following is the detailed procedure to determine the greatest common factor of fractions 408/318, 639/465.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 408/318,639/465
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 408/318,639/465, numerators are 408,639
Denominators are 318,465
The GCF of 408,639 is 3 .
LCM of 318,465 is 49290.
The greatest common factor of 408/318,639/465 = [GCF of 408,639]/[LCM of 318,465]= 3/49290
Therefore, the GCF of 408/318,639/465 is 3/49290.
To find the highest common factor of 408,639, we have to find the factors of both numbers and list the highest common factor.
The factors of 408 are 1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
The factors of 639 are 1, 3, 9, 71, 213, 639
The HCF of 408,639 is 3.
Lets's calculate GCF of 408,639
3 | 408, 639 |
136, 213 |
∴ So the GCF of the given numbers is 3 = 3
Now, list down the factors of 408
:1,2,3,4,6,8,12,17,24,34,51,68,102,136,204,408
Now, list down the factors of 639
:1,3,9,71,213,639
Greatest Common Factor
We found the factors 408,639 . The biggest common factor number is the GCF number.
So the greatest common factor 408,639 is 3.
Lets's calculate LCM of 318,465
3 | 318, 465 |
106, 155 |
∴ So the LCM of the given numbers is 3 x 106 x 155 = 49290
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/49290
Therefore, the GCF of Fractions 408/318,639/465 is 3/49290
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 318,465 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(318,465) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(318,465) x common factors =3 x 1 = 3
LCM(318,465) = ( 318 × 465 ) / 3
LCM(318,465) = 147870 / 3
LCM(318,465) = 49290
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 408,639?
The HCF of 408,639 is 3
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 408/318, 639/465?
Answer: GCF of Numerators as per given numbers 408/318, 639/465 is
GCF of Numerators i.e. for 408,639 is 3
LCM of denominators i.e. for 318,465 is 49290.
Thus, GCF of Fractions is 3/49290.Finally, GCF of Fractions for 408/318, 639/465 is 3/49290.