Use our free GCF of Fractions Calculator tool to compute the GCF of 490/647, 687/405 i.e 1/262035 easily. The following is the detailed procedure to determine the greatest common factor of fractions 490/647, 687/405.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 490/647,687/405
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 490/647,687/405, numerators are 490,687
Denominators are 647,405
The GCF of 490,687 is 1 .
LCM of 647,405 is 262035.
The greatest common factor of 490/647,687/405 = [GCF of 490,687]/[LCM of 647,405]= 1/262035
Therefore, the GCF of 490/647,687/405 is 1/262035.
To find the highest common factor of 490,687, we have to find the factors of both numbers and list the highest common factor.
The factors of 490 are 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
The factors of 687 are 1, 3, 229, 687
The HCF of 490,687 is 1.
Lets's calculate GCF of 490,687
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 490
:1,2,5,7,10,14,35,49,70,98,245,490
Now, list down the factors of 687
:1,3,229,687
Greatest Common Factor
We found the factors 490,687 . The biggest common factor number is the GCF number.
So the greatest common factor 490,687 is 1.
Lets's calculate LCM of 647,405
Given numbers has no common factors except 1. So, there LCM is their product i.e 262035
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/262035
Therefore, the GCF of Fractions 490/647,687/405 is 1/262035
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 647,405 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(647,405) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(647,405) x common factors =1 x 1 = 1
LCM(647,405) = ( 647 × 405 ) / 1
LCM(647,405) = 262035 / 1
LCM(647,405) = 262035
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 490,687?
The HCF of 490,687 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 490/647, 687/405?
Answer: GCF of Numerators as per given numbers 490/647, 687/405 is
GCF of Numerators i.e. for 490,687 is 1
LCM of denominators i.e. for 647,405 is 262035.
Thus, GCF of Fractions is 1/262035.Finally, GCF of Fractions for 490/647, 687/405 is 1/262035.