GCF of 428/278, 921/154
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 428/278, 921/154 i.e 1/21406 easily. The following is the detailed procedure to determine the greatest common factor of fractions 428/278, 921/154.
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 428/278,921/154?
Given fractions are 428/278,921/154
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 428/278,921/154, numerators are 428,921
Denominators are 278,154
The GCF of 428,921 is 1 .
LCM of 278,154 is 21406.
The greatest common factor of 428/278,921/154 = [GCF of 428,921]/[LCM of 278,154]= 1/21406
Therefore, the GCF of 428/278,921/154 is 1/21406.
To find the highest common factor of 428,921, we have to find the factors of both numbers and list the highest common factor.
The factors of 428 are 1, 2, 4, 107, 214, 428
The factors of 921 are 1, 3, 307, 921
The HCF of 428,921 is 1.
Lets's calculate GCF of 428,921
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 428,921 By Matching Biggest Common Factor Method
Now, list down the factors of 428
:1,2,4,107,214,428
Now, list down the factors of 921
:1,3,307,921
Greatest Common Factor
We found the factors 428,921 . The biggest common factor number is the GCF number.
So the greatest common factor 428,921 is 1.
Lets's calculate LCM of 278,154
| 2 | 278, 154 |
| 139, 77 |
∴ So the LCM of the given numbers is 2 x 139 x 77 = 21406
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/21406
Therefore, the GCF of Fractions 428/278,921/154 is 1/21406
Least Common Multiple of 278,154 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 278,154 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(278,154) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(278,154) x common factors =2 x 1 = 2
LCM(278,154) = ( 278 × 154 ) / 2
LCM(278,154) = 42812 / 2
LCM(278,154) = 21406
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FAQs on GCF of Fractions of 428/278, 921/154
1. What is the HCF of 428,921?
The HCF of 428,921 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 428/278, 921/154?
Answer: GCF of Numerators as per given numbers 428/278, 921/154 is
GCF of Numerators i.e. for 428,921 is 1
LCM of denominators i.e. for 278,154 is 21406.
Thus, GCF of Fractions is 1/21406.Finally, GCF of Fractions for 428/278, 921/154 is 1/21406.