Use our free GCF of Fractions Calculator tool to compute the GCF of 84/81, 665/89, 421/924 i.e 1/2220372 easily. The following is the detailed procedure to determine the greatest common factor of fractions 84/81, 665/89, 421/924.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 84/81,665/89,421/924
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 84/81,665/89,421/924, numerators are 84,665,421
Denominators are 81,89,924
The GCF of 84,665,421 is 1 .
LCM of 81,89,924 is 2220372.
The greatest common factor of 84/81,665/89,421/924 = [GCF of 84,665,421]/[LCM of 81,89,924]= 1/2220372
Therefore, the GCF of 84/81,665/89,421/924 is 1/2220372.
To find the highest common factor of 84,665,421, we have to find the factors of both numbers and list the highest common factor.
The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
The factors of 665 are 1, 5, 7, 19, 35, 95, 133, 665
The factors of 421 are 1, 421
The HCF of 84,665,421 is 1.
Lets's calculate GCF of 84,665,421
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 84
:1,2,3,4,6,7,12,14,21,28,42,84
Now, list down the factors of 665
:1,5,7,19,35,95,133,665
Now, list down the factors of 421
:1,421
Greatest Common Factor
We found the factors 84,665,421 . The biggest common factor number is the GCF number.
So the greatest common factor 84,665,421 is 1.
Lets's calculate LCM of 81,89,924
3 | 81, 89, 924 |
27, 89, 308 |
∴ So the LCM of the given numbers is 3 x 27 x 89 x 308 = 2220372
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/2220372
Therefore, the GCF of Fractions 84/81,665/89,421/924 is 1/2220372
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 81,89,924 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,89,924) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(81,89,924) x common factors =1 x 3 = 3
LCM(81,89,924) = ( 81 × 89 × 924 ) / 3
LCM(81,89,924) = 6661116 / 3
LCM(81,89,924) = 2220372
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 84,665,421?
The HCF of 84,665,421 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 84/81, 665/89, 421/924?
Answer: GCF of Numerators as per given numbers 84/81, 665/89, 421/924 is
GCF of Numerators i.e. for 84,665,421 is 1
LCM of denominators i.e. for 81,89,924 is 2220372.
Thus, GCF of Fractions is 1/2220372.Finally, GCF of Fractions for 84/81, 665/89, 421/924 is 1/2220372.