Use our free GCF of Fractions Calculator tool to compute the GCF of 938/128, 689/340 i.e 1/10880 easily. The following is the detailed procedure to determine the greatest common factor of fractions 938/128, 689/340.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 938/128,689/340
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 938/128,689/340, numerators are 938,689
Denominators are 128,340
The GCF of 938,689 is 1 .
LCM of 128,340 is 10880.
The greatest common factor of 938/128,689/340 = [GCF of 938,689]/[LCM of 128,340]= 1/10880
Therefore, the GCF of 938/128,689/340 is 1/10880.
To find the highest common factor of 938,689, we have to find the factors of both numbers and list the highest common factor.
The factors of 938 are 1, 2, 7, 14, 67, 134, 469, 938
The factors of 689 are 1, 13, 53, 689
The HCF of 938,689 is 1.
Lets's calculate GCF of 938,689
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 938
:1,2,7,14,67,134,469,938
Now, list down the factors of 689
:1,13,53,689
Greatest Common Factor
We found the factors 938,689 . The biggest common factor number is the GCF number.
So the greatest common factor 938,689 is 1.
Lets's calculate LCM of 128,340
2 | 128, 340 |
2 | 64, 170 |
32, 85 |
∴ So the LCM of the given numbers is 2 x 2 x 32 x 85 = 10880
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/10880
Therefore, the GCF of Fractions 938/128,689/340 is 1/10880
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 128,340 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(128,340) = 4
common factors(in case of two or more numbers have common factors) = 1
GCF(128,340) x common factors =4 x 1 = 4
LCM(128,340) = ( 128 × 340 ) / 4
LCM(128,340) = 43520 / 4
LCM(128,340) = 10880
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 938,689?
The HCF of 938,689 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 938/128, 689/340?
Answer: GCF of Numerators as per given numbers 938/128, 689/340 is
GCF of Numerators i.e. for 938,689 is 1
LCM of denominators i.e. for 128,340 is 10880.
Thus, GCF of Fractions is 1/10880.Finally, GCF of Fractions for 938/128, 689/340 is 1/10880.