Use our free GCF of Fractions Calculator tool to compute the GCF of 638/209, 695/842 i.e 1/175978 easily. The following is the detailed procedure to determine the greatest common factor of fractions 638/209, 695/842.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 638/209,695/842
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 638/209,695/842, numerators are 638,695
Denominators are 209,842
The GCF of 638,695 is 1 .
LCM of 209,842 is 175978.
The greatest common factor of 638/209,695/842 = [GCF of 638,695]/[LCM of 209,842]= 1/175978
Therefore, the GCF of 638/209,695/842 is 1/175978.
To find the highest common factor of 638,695, we have to find the factors of both numbers and list the highest common factor.
The factors of 638 are 1, 2, 11, 22, 29, 58, 319, 638
The factors of 695 are 1, 5, 139, 695
The HCF of 638,695 is 1.
Lets's calculate GCF of 638,695
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 638
:1,2,11,22,29,58,319,638
Now, list down the factors of 695
:1,5,139,695
Greatest Common Factor
We found the factors 638,695 . The biggest common factor number is the GCF number.
So the greatest common factor 638,695 is 1.
Lets's calculate LCM of 209,842
Given numbers has no common factors except 1. So, there LCM is their product i.e 175978
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/175978
Therefore, the GCF of Fractions 638/209,695/842 is 1/175978
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 209,842 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(209,842) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(209,842) x common factors =1 x 1 = 1
LCM(209,842) = ( 209 × 842 ) / 1
LCM(209,842) = 175978 / 1
LCM(209,842) = 175978
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 638,695?
The HCF of 638,695 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 638/209, 695/842?
Answer: GCF of Numerators as per given numbers 638/209, 695/842 is
GCF of Numerators i.e. for 638,695 is 1
LCM of denominators i.e. for 209,842 is 175978.
Thus, GCF of Fractions is 1/175978.Finally, GCF of Fractions for 638/209, 695/842 is 1/175978.