GCF of 307/21, 638/378
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 307/21, 638/378 i.e 1/378 easily. The following is the detailed procedure to determine the greatest common factor of fractions 307/21, 638/378.
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 307/21,638/378?
Given fractions are 307/21,638/378
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 307/21,638/378, numerators are 307,638
Denominators are 21,378
The GCF of 307,638 is 1 .
LCM of 21,378 is 378.
The greatest common factor of 307/21,638/378 = [GCF of 307,638]/[LCM of 21,378]= 1/378
Therefore, the GCF of 307/21,638/378 is 1/378.
To find the highest common factor of 307,638, we have to find the factors of both numbers and list the highest common factor.
The factors of 307 are 1, 307
The factors of 638 are 1, 2, 11, 22, 29, 58, 319, 638
The HCF of 307,638 is 1.
Lets's calculate GCF of 307,638
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 307,638 By Matching Biggest Common Factor Method
Now, list down the factors of 307
:1,307
Now, list down the factors of 638
:1,2,11,22,29,58,319,638
Greatest Common Factor
We found the factors 307,638 . The biggest common factor number is the GCF number.
So the greatest common factor 307,638 is 1.
Lets's calculate LCM of 21,378
| 3 | 21, 378 |
| 7 | 7, 126 |
| 1, 18 |
∴ So the LCM of the given numbers is 3 x 7 x 1 x 18 = 378
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/378
Therefore, the GCF of Fractions 307/21,638/378 is 1/378
Least Common Multiple of 21,378 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 21,378 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(21,378) = 21
common factors(in case of two or more numbers have common factors) = 1
GCF(21,378) x common factors =21 x 1 = 21
LCM(21,378) = ( 21 × 378 ) / 21
LCM(21,378) = 7938 / 21
LCM(21,378) = 378
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 307/21, 638/378
1. What is the HCF of 307,638?
The HCF of 307,638 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 307/21, 638/378?
Answer: GCF of Numerators as per given numbers 307/21, 638/378 is
GCF of Numerators i.e. for 307,638 is 1
LCM of denominators i.e. for 21,378 is 378.
Thus, GCF of Fractions is 1/378.Finally, GCF of Fractions for 307/21, 638/378 is 1/378.