Use our free GCF of Fractions Calculator tool to compute the GCF of 218/859, 644/821 i.e 2/705239 easily. The following is the detailed procedure to determine the greatest common factor of fractions 218/859, 644/821.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 218/859,644/821
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 218/859,644/821, numerators are 218,644
Denominators are 859,821
The GCF of 218,644 is 2 .
LCM of 859,821 is 705239.
The greatest common factor of 218/859,644/821 = [GCF of 218,644]/[LCM of 859,821]= 2/705239
Therefore, the GCF of 218/859,644/821 is 2/705239.
To find the highest common factor of 218,644, we have to find the factors of both numbers and list the highest common factor.
The factors of 218 are 1, 2, 109, 218
The factors of 644 are 1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644
The HCF of 218,644 is 2.
Lets's calculate GCF of 218,644
2 | 218, 644 |
109, 322 |
∴ So the GCF of the given numbers is 2 = 2
Now, list down the factors of 218
:1,2,109,218
Now, list down the factors of 644
:1,2,4,7,14,23,28,46,92,161,322,644
Greatest Common Factor
We found the factors 218,644 . The biggest common factor number is the GCF number.
So the greatest common factor 218,644 is 2.
Lets's calculate LCM of 859,821
Given numbers has no common factors except 1. So, there LCM is their product i.e 705239
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/705239
Therefore, the GCF of Fractions 218/859,644/821 is 2/705239
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 859,821 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(859,821) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(859,821) x common factors =1 x 1 = 1
LCM(859,821) = ( 859 × 821 ) / 1
LCM(859,821) = 705239 / 1
LCM(859,821) = 705239
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 218,644?
The HCF of 218,644 is 2
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 218/859, 644/821?
Answer: GCF of Numerators as per given numbers 218/859, 644/821 is
GCF of Numerators i.e. for 218,644 is 2
LCM of denominators i.e. for 859,821 is 705239.
Thus, GCF of Fractions is 2/705239.Finally, GCF of Fractions for 218/859, 644/821 is 2/705239.