Use our free GCF of Fractions Calculator tool to compute the GCF of 398/791, 155/654 i.e 1/517314 easily. The following is the detailed procedure to determine the greatest common factor of fractions 398/791, 155/654.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 398/791,155/654
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 398/791,155/654, numerators are 398,155
Denominators are 791,654
The GCF of 398,155 is 1 .
LCM of 791,654 is 517314.
The greatest common factor of 398/791,155/654 = [GCF of 398,155]/[LCM of 791,654]= 1/517314
Therefore, the GCF of 398/791,155/654 is 1/517314.
To find the highest common factor of 398,155, 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 155 are 1, 5, 31, 155
The HCF of 398,155 is 1.
Lets's calculate GCF of 398,155
∴ 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 155
:1,5,31,155
Greatest Common Factor
We found the factors 398,155 . The biggest common factor number is the GCF number.
So the greatest common factor 398,155 is 1.
Lets's calculate LCM of 791,654
Given numbers has no common factors except 1. So, there LCM is their product i.e 517314
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/517314
Therefore, the GCF of Fractions 398/791,155/654 is 1/517314
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 791,654 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(791,654) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(791,654) x common factors =1 x 1 = 1
LCM(791,654) = ( 791 × 654 ) / 1
LCM(791,654) = 517314 / 1
LCM(791,654) = 517314
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 398,155?
The HCF of 398,155 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 398/791, 155/654?
Answer: GCF of Numerators as per given numbers 398/791, 155/654 is
GCF of Numerators i.e. for 398,155 is 1
LCM of denominators i.e. for 791,654 is 517314.
Thus, GCF of Fractions is 1/517314.Finally, GCF of Fractions for 398/791, 155/654 is 1/517314.