Use our free GCF of Fractions Calculator tool to compute the GCF of 775/638, 690/815 i.e 5/519970 easily. The following is the detailed procedure to determine the greatest common factor of fractions 775/638, 690/815.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 775/638,690/815
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 775/638,690/815, numerators are 775,690
Denominators are 638,815
The GCF of 775,690 is 5 .
LCM of 638,815 is 519970.
The greatest common factor of 775/638,690/815 = [GCF of 775,690]/[LCM of 638,815]= 5/519970
Therefore, the GCF of 775/638,690/815 is 5/519970.
To find the highest common factor of 775,690, we have to find the factors of both numbers and list the highest common factor.
The factors of 775 are 1, 5, 25, 31, 155, 775
The factors of 690 are 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
The HCF of 775,690 is 5.
Lets's calculate GCF of 775,690
5 | 775, 690 |
155, 138 |
∴ So the GCF of the given numbers is 5 = 5
Now, list down the factors of 775
:1,5,25,31,155,775
Now, list down the factors of 690
:1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690
Greatest Common Factor
We found the factors 775,690 . The biggest common factor number is the GCF number.
So the greatest common factor 775,690 is 5.
Lets's calculate LCM of 638,815
Given numbers has no common factors except 1. So, there LCM is their product i.e 519970
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/519970
Therefore, the GCF of Fractions 775/638,690/815 is 5/519970
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 638,815 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(638,815) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(638,815) x common factors =1 x 1 = 1
LCM(638,815) = ( 638 × 815 ) / 1
LCM(638,815) = 519970 / 1
LCM(638,815) = 519970
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 775,690?
The HCF of 775,690 is 5
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 775/638, 690/815?
Answer: GCF of Numerators as per given numbers 775/638, 690/815 is
GCF of Numerators i.e. for 775,690 is 5
LCM of denominators i.e. for 638,815 is 519970.
Thus, GCF of Fractions is 5/519970.Finally, GCF of Fractions for 775/638, 690/815 is 5/519970.