Use our free GCF of Fractions Calculator tool to compute the GCF of 78/621, 31/871, 648/537 i.e 1/96819489 easily. The following is the detailed procedure to determine the greatest common factor of fractions 78/621, 31/871, 648/537.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 78/621,31/871,648/537
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 78/621,31/871,648/537, numerators are 78,31,648
Denominators are 621,871,537
The GCF of 78,31,648 is 1 .
LCM of 621,871,537 is 96819489.
The greatest common factor of 78/621,31/871,648/537 = [GCF of 78,31,648]/[LCM of 621,871,537]= 1/96819489
Therefore, the GCF of 78/621,31/871,648/537 is 1/96819489.
To find the highest common factor of 78,31,648, we have to find the factors of both numbers and list the highest common factor.
The factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78
The factors of 31 are 1, 31
The factors of 648 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648
The HCF of 78,31,648 is 1.
Lets's calculate GCF of 78,31,648
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 78
:1,2,3,6,13,26,39,78
Now, list down the factors of 31
:1,31
Now, list down the factors of 648
:1,2,3,4,6,8,9,12,18,24,27,36,54,72,81,108,162,216,324,648
Greatest Common Factor
We found the factors 78,31,648 . The biggest common factor number is the GCF number.
So the greatest common factor 78,31,648 is 1.
Lets's calculate LCM of 621,871,537
3 | 621, 871, 537 |
207, 871, 179 |
∴ So the LCM of the given numbers is 3 x 207 x 871 x 179 = 96819489
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/96819489
Therefore, the GCF of Fractions 78/621,31/871,648/537 is 1/96819489
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 621,871,537 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(621,871,537) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(621,871,537) x common factors =1 x 3 = 3
LCM(621,871,537) = ( 621 × 871 × 537 ) / 3
LCM(621,871,537) = 290458467 / 3
LCM(621,871,537) = 96819489
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 78,31,648?
The HCF of 78,31,648 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 78/621, 31/871, 648/537?
Answer: GCF of Numerators as per given numbers 78/621, 31/871, 648/537 is
GCF of Numerators i.e. for 78,31,648 is 1
LCM of denominators i.e. for 621,871,537 is 96819489.
Thus, GCF of Fractions is 1/96819489.Finally, GCF of Fractions for 78/621, 31/871, 648/537 is 1/96819489.