Use our free GCF of Fractions Calculator tool to compute the GCF of 86/31, 854/71, 781/387 i.e 1/851787 easily. The following is the detailed procedure to determine the greatest common factor of fractions 86/31, 854/71, 781/387.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 86/31,854/71,781/387
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 86/31,854/71,781/387, numerators are 86,854,781
Denominators are 31,71,387
The GCF of 86,854,781 is 1 .
LCM of 31,71,387 is 851787.
The greatest common factor of 86/31,854/71,781/387 = [GCF of 86,854,781]/[LCM of 31,71,387]= 1/851787
Therefore, the GCF of 86/31,854/71,781/387 is 1/851787.
To find the highest common factor of 86,854,781, we have to find the factors of both numbers and list the highest common factor.
The factors of 86 are 1, 2, 43, 86
The factors of 854 are 1, 2, 7, 14, 61, 122, 427, 854
The factors of 781 are 1, 11, 71, 781
The HCF of 86,854,781 is 1.
Lets's calculate GCF of 86,854,781
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 86
:1,2,43,86
Now, list down the factors of 854
:1,2,7,14,61,122,427,854
Now, list down the factors of 781
:1,11,71,781
Greatest Common Factor
We found the factors 86,854,781 . The biggest common factor number is the GCF number.
So the greatest common factor 86,854,781 is 1.
Lets's calculate LCM of 31,71,387
Given numbers has no common factors except 1. So, there LCM is their product i.e 851787
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/851787
Therefore, the GCF of Fractions 86/31,854/71,781/387 is 1/851787
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 31,71,387 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(31,71,387) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(31,71,387) x common factors =1 x 1 = 1
LCM(31,71,387) = ( 31 × 71 × 387 ) / 1
LCM(31,71,387) = 851787 / 1
LCM(31,71,387) = 851787
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 86,854,781?
The HCF of 86,854,781 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 86/31, 854/71, 781/387?
Answer: GCF of Numerators as per given numbers 86/31, 854/71, 781/387 is
GCF of Numerators i.e. for 86,854,781 is 1
LCM of denominators i.e. for 31,71,387 is 851787.
Thus, GCF of Fractions is 1/851787.Finally, GCF of Fractions for 86/31, 854/71, 781/387 is 1/851787.