Use our free GCF of Fractions Calculator tool to compute the GCF of 378/297, 351/517 i.e 27/13959 easily. The following is the detailed procedure to determine the greatest common factor of fractions 378/297, 351/517.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 378/297,351/517
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 378/297,351/517, numerators are 378,351
Denominators are 297,517
The GCF of 378,351 is 27 .
LCM of 297,517 is 13959.
The greatest common factor of 378/297,351/517 = [GCF of 378,351]/[LCM of 297,517]= 27/13959
Therefore, the GCF of 378/297,351/517 is 27/13959.
To find the highest common factor of 378,351, we have to find the factors of both numbers and list the highest common factor.
The factors of 378 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 27, 42, 54, 63, 126, 189, 378
The factors of 351 are 1, 3, 9, 13, 27, 39, 117, 351
The HCF of 378,351 is 27.
Lets's calculate GCF of 378,351
3 | 378, 351 |
3 | 126, 117 |
3 | 42, 39 |
14, 13 |
∴ So the GCF of the given numbers is 3 x 3 x 3 = 27
Now, list down the factors of 378
:1,2,3,6,7,9,14,18,21,27,42,54,63,126,189,378
Now, list down the factors of 351
:1,3,9,13,27,39,117,351
Greatest Common Factor
We found the factors 378,351 . The biggest common factor number is the GCF number.
So the greatest common factor 378,351 is 27.
Lets's calculate LCM of 297,517
11 | 297, 517 |
27, 47 |
∴ So the LCM of the given numbers is 11 x 27 x 47 = 13959
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 27/13959
Therefore, the GCF of Fractions 378/297,351/517 is 27/13959
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 297,517 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(297,517) = 11
common factors(in case of two or more numbers have common factors) = 1
GCF(297,517) x common factors =11 x 1 = 11
LCM(297,517) = ( 297 × 517 ) / 11
LCM(297,517) = 153549 / 11
LCM(297,517) = 13959
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 378,351?
The HCF of 378,351 is 27
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 378/297, 351/517?
Answer: GCF of Numerators as per given numbers 378/297, 351/517 is
GCF of Numerators i.e. for 378,351 is 27
LCM of denominators i.e. for 297,517 is 13959.
Thus, GCF of Fractions is 27/13959.Finally, GCF of Fractions for 378/297, 351/517 is 27/13959.