Use our free GCF of Fractions Calculator tool to compute the GCF of 810/389, 7580/398 i.e 10/154822 easily. The following is the detailed procedure to determine the greatest common factor of fractions 810/389, 7580/398.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 810/389,7580/398
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 810/389,7580/398, numerators are 810,7580
Denominators are 389,398
The GCF of 810,7580 is 10 .
LCM of 389,398 is 154822.
The greatest common factor of 810/389,7580/398 = [GCF of 810,7580]/[LCM of 389,398]= 10/154822
Therefore, the GCF of 810/389,7580/398 is 10/154822.
To find the highest common factor of 810,7580, we have to find the factors of both numbers and list the highest common factor.
The factors of 810 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 270, 405, 810
The factors of 7580 are 1, 2, 4, 5, 10, 20, 379, 758, 1516, 1895, 3790, 7580
The HCF of 810,7580 is 10.
Lets's calculate GCF of 810,7580
2 | 810, 7580 |
5 | 405, 3790 |
81, 758 |
∴ So the GCF of the given numbers is 2 x 5 = 10
Now, list down the factors of 810
:1,2,3,5,6,9,10,15,18,27,30,45,54,81,90,135,162,270,405,810
Now, list down the factors of 7580
:1,2,4,5,10,20,379,758,1516,1895,3790,7580
Greatest Common Factor
We found the factors 810,7580 . The biggest common factor number is the GCF number.
So the greatest common factor 810,7580 is 10.
Lets's calculate LCM of 389,398
Given numbers has no common factors except 1. So, there LCM is their product i.e 154822
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 10/154822
Therefore, the GCF of Fractions 810/389,7580/398 is 10/154822
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 389,398 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(389,398) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(389,398) x common factors =1 x 1 = 1
LCM(389,398) = ( 389 × 398 ) / 1
LCM(389,398) = 154822 / 1
LCM(389,398) = 154822
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 810,7580?
The HCF of 810,7580 is 10
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 810/389, 7580/398?
Answer: GCF of Numerators as per given numbers 810/389, 7580/398 is
GCF of Numerators i.e. for 810,7580 is 10
LCM of denominators i.e. for 389,398 is 154822.
Thus, GCF of Fractions is 10/154822.Finally, GCF of Fractions for 810/389, 7580/398 is 10/154822.