GCF of 27/648, 20/676, 399/771
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 27/648, 20/676, 399/771 i.e 1/28144584 easily. The following is the detailed procedure to determine the greatest common factor of fractions 27/648, 20/676, 399/771.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 27/648,20/676,399/771?
Given fractions are 27/648,20/676,399/771
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 27/648,20/676,399/771, numerators are 27,20,399
Denominators are 648,676,771
The GCF of 27,20,399 is 1 .
LCM of 648,676,771 is 28144584.
The greatest common factor of 27/648,20/676,399/771 = [GCF of 27,20,399]/[LCM of 648,676,771]= 1/28144584
Therefore, the GCF of 27/648,20/676,399/771 is 1/28144584.
To find the highest common factor of 27,20,399, we have to find the factors of both numbers and list the highest common factor.
The factors of 27 are 1, 3, 9, 27
The factors of 20 are 1, 2, 4, 5, 10, 20
The factors of 399 are 1, 3, 7, 19, 21, 57, 133, 399
The HCF of 27,20,399 is 1.
Lets's calculate GCF of 27,20,399
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 27,20,399 By Matching Biggest Common Factor Method
Now, list down the factors of 27
:1,3,9,27
Now, list down the factors of 20
:1,2,4,5,10,20
Now, list down the factors of 399
:1,3,7,19,21,57,133,399
Greatest Common Factor
We found the factors 27,20,399 . The biggest common factor number is the GCF number.
So the greatest common factor 27,20,399 is 1.
Lets's calculate LCM of 648,676,771
| 2 | 648, 676, 771 |
| 2 | 324, 338, 771 |
| 3 | 162, 169, 771 |
| 54, 169, 257 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 54 x 169 x 257 = 28144584
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/28144584
Therefore, the GCF of Fractions 27/648,20/676,399/771 is 1/28144584
Least Common Multiple of 648,676,771 with GCF Formula
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 648,676,771 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(648,676,771) = 1
common factors(in case of two or more numbers have common factors) = 12
GCF(648,676,771) x common factors =1 x 12 = 12
LCM(648,676,771) = ( 648 × 676 × 771 ) / 12
LCM(648,676,771) = 337735008 / 12
LCM(648,676,771) = 28144584
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FAQs on GCF of Fractions of 27/648, 20/676, 399/771
1. What is the HCF of 27,20,399?
The HCF of 27,20,399 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 27/648, 20/676, 399/771?
Answer: GCF of Numerators as per given numbers 27/648, 20/676, 399/771 is
GCF of Numerators i.e. for 27,20,399 is 1
LCM of denominators i.e. for 648,676,771 is 28144584.
Thus, GCF of Fractions is 1/28144584.Finally, GCF of Fractions for 27/648, 20/676, 399/771 is 1/28144584.