Use our free GCF of Fractions Calculator tool to compute the GCF of 8420/680, 8721/907 i.e 1/616760 easily. The following is the detailed procedure to determine the greatest common factor of fractions 8420/680, 8721/907.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 8420/680,8721/907
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 8420/680,8721/907, numerators are 8420,8721
Denominators are 680,907
The GCF of 8420,8721 is 1 .
LCM of 680,907 is 616760.
The greatest common factor of 8420/680,8721/907 = [GCF of 8420,8721]/[LCM of 680,907]= 1/616760
Therefore, the GCF of 8420/680,8721/907 is 1/616760.
To find the highest common factor of 8420,8721, we have to find the factors of both numbers and list the highest common factor.
The factors of 8420 are 1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420
The factors of 8721 are 1, 3, 9, 17, 19, 27, 51, 57, 153, 171, 323, 459, 513, 969, 2907, 8721
The HCF of 8420,8721 is 1.
Lets's calculate GCF of 8420,8721
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 8420
:1,2,4,5,10,20,421,842,1684,2105,4210,8420
Now, list down the factors of 8721
:1,3,9,17,19,27,51,57,153,171,323,459,513,969,2907,8721
Greatest Common Factor
We found the factors 8420,8721 . The biggest common factor number is the GCF number.
So the greatest common factor 8420,8721 is 1.
Lets's calculate LCM of 680,907
Given numbers has no common factors except 1. So, there LCM is their product i.e 616760
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/616760
Therefore, the GCF of Fractions 8420/680,8721/907 is 1/616760
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 680,907 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(680,907) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(680,907) x common factors =1 x 1 = 1
LCM(680,907) = ( 680 × 907 ) / 1
LCM(680,907) = 616760 / 1
LCM(680,907) = 616760
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 8420,8721?
The HCF of 8420,8721 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 8420/680, 8721/907?
Answer: GCF of Numerators as per given numbers 8420/680, 8721/907 is
GCF of Numerators i.e. for 8420,8721 is 1
LCM of denominators i.e. for 680,907 is 616760.
Thus, GCF of Fractions is 1/616760.Finally, GCF of Fractions for 8420/680, 8721/907 is 1/616760.