Use our free GCF of Fractions Calculator tool to compute the GCF of 398/657, 811/648 i.e 1/47304 easily. The following is the detailed procedure to determine the greatest common factor of fractions 398/657, 811/648.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 398/657,811/648
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 398/657,811/648, numerators are 398,811
Denominators are 657,648
The GCF of 398,811 is 1 .
LCM of 657,648 is 47304.
The greatest common factor of 398/657,811/648 = [GCF of 398,811]/[LCM of 657,648]= 1/47304
Therefore, the GCF of 398/657,811/648 is 1/47304.
To find the highest common factor of 398,811, we have to find the factors of both numbers and list the highest common factor.
The factors of 398 are 1, 2, 199, 398
The factors of 811 are 1, 811
The HCF of 398,811 is 1.
Lets's calculate GCF of 398,811
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 398
:1,2,199,398
Now, list down the factors of 811
:1,811
Greatest Common Factor
We found the factors 398,811 . The biggest common factor number is the GCF number.
So the greatest common factor 398,811 is 1.
Lets's calculate LCM of 657,648
3 | 657, 648 |
3 | 219, 216 |
73, 72 |
∴ So the LCM of the given numbers is 3 x 3 x 73 x 72 = 47304
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/47304
Therefore, the GCF of Fractions 398/657,811/648 is 1/47304
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 657,648 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(657,648) = 9
common factors(in case of two or more numbers have common factors) = 1
GCF(657,648) x common factors =9 x 1 = 9
LCM(657,648) = ( 657 × 648 ) / 9
LCM(657,648) = 425736 / 9
LCM(657,648) = 47304
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 398,811?
The HCF of 398,811 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 398/657, 811/648?
Answer: GCF of Numerators as per given numbers 398/657, 811/648 is
GCF of Numerators i.e. for 398,811 is 1
LCM of denominators i.e. for 657,648 is 47304.
Thus, GCF of Fractions is 1/47304.Finally, GCF of Fractions for 398/657, 811/648 is 1/47304.