Use our free GCF of Fractions Calculator tool to compute the GCF of 778/647, 257/755 i.e 1/488485 easily. The following is the detailed procedure to determine the greatest common factor of fractions 778/647, 257/755.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 778/647,257/755
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 778/647,257/755, numerators are 778,257
Denominators are 647,755
The GCF of 778,257 is 1 .
LCM of 647,755 is 488485.
The greatest common factor of 778/647,257/755 = [GCF of 778,257]/[LCM of 647,755]= 1/488485
Therefore, the GCF of 778/647,257/755 is 1/488485.
To find the highest common factor of 778,257, we have to find the factors of both numbers and list the highest common factor.
The factors of 778 are 1, 2, 389, 778
The factors of 257 are 1, 257
The HCF of 778,257 is 1.
Lets's calculate GCF of 778,257
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 778
:1,2,389,778
Now, list down the factors of 257
:1,257
Greatest Common Factor
We found the factors 778,257 . The biggest common factor number is the GCF number.
So the greatest common factor 778,257 is 1.
Lets's calculate LCM of 647,755
Given numbers has no common factors except 1. So, there LCM is their product i.e 488485
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/488485
Therefore, the GCF of Fractions 778/647,257/755 is 1/488485
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 647,755 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(647,755) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(647,755) x common factors =1 x 1 = 1
LCM(647,755) = ( 647 × 755 ) / 1
LCM(647,755) = 488485 / 1
LCM(647,755) = 488485
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 778,257?
The HCF of 778,257 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 778/647, 257/755?
Answer: GCF of Numerators as per given numbers 778/647, 257/755 is
GCF of Numerators i.e. for 778,257 is 1
LCM of denominators i.e. for 647,755 is 488485.
Thus, GCF of Fractions is 1/488485.Finally, GCF of Fractions for 778/647, 257/755 is 1/488485.