Use our free GCF of Fractions Calculator tool to compute the GCF of 668/557, 640/879 i.e 4/489603 easily. The following is the detailed procedure to determine the greatest common factor of fractions 668/557, 640/879.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 668/557,640/879
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 668/557,640/879, numerators are 668,640
Denominators are 557,879
The GCF of 668,640 is 4 .
LCM of 557,879 is 489603.
The greatest common factor of 668/557,640/879 = [GCF of 668,640]/[LCM of 557,879]= 4/489603
Therefore, the GCF of 668/557,640/879 is 4/489603.
To find the highest common factor of 668,640, we have to find the factors of both numbers and list the highest common factor.
The factors of 668 are 1, 2, 4, 167, 334, 668
The factors of 640 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
The HCF of 668,640 is 4.
Lets's calculate GCF of 668,640
2 | 668, 640 |
2 | 334, 320 |
167, 160 |
∴ So the GCF of the given numbers is 2 x 2 = 4
Now, list down the factors of 668
:1,2,4,167,334,668
Now, list down the factors of 640
:1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640
Greatest Common Factor
We found the factors 668,640 . The biggest common factor number is the GCF number.
So the greatest common factor 668,640 is 4.
Lets's calculate LCM of 557,879
Given numbers has no common factors except 1. So, there LCM is their product i.e 489603
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 4/489603
Therefore, the GCF of Fractions 668/557,640/879 is 4/489603
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 557,879 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(557,879) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(557,879) x common factors =1 x 1 = 1
LCM(557,879) = ( 557 × 879 ) / 1
LCM(557,879) = 489603 / 1
LCM(557,879) = 489603
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 668,640?
The HCF of 668,640 is 4
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 668/557, 640/879?
Answer: GCF of Numerators as per given numbers 668/557, 640/879 is
GCF of Numerators i.e. for 668,640 is 4
LCM of denominators i.e. for 557,879 is 489603.
Thus, GCF of Fractions is 4/489603.Finally, GCF of Fractions for 668/557, 640/879 is 4/489603.