GCF of 77/351, 21/9879
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 77/351, 21/9879 i.e 7/1155843 easily. The following is the detailed procedure to determine the greatest common factor of fractions 77/351, 21/9879.
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 77/351,21/9879?
Given fractions are 77/351,21/9879
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 77/351,21/9879, numerators are 77,21
Denominators are 351,9879
The GCF of 77,21 is 7 .
LCM of 351,9879 is 1155843.
The greatest common factor of 77/351,21/9879 = [GCF of 77,21]/[LCM of 351,9879]= 7/1155843
Therefore, the GCF of 77/351,21/9879 is 7/1155843.
To find the highest common factor of 77,21, we have to find the factors of both numbers and list the highest common factor.
The factors of 77 are 1, 7, 11, 77
The factors of 21 are 1, 3, 7, 21
The HCF of 77,21 is 7.
Lets's calculate GCF of 77,21
| 7 | 77, 21 |
| 11, 3 |
∴ So the GCF of the given numbers is 7 = 7
Greatest Common Factor of 77,21 By Matching Biggest Common Factor Method
Now, list down the factors of 77
:1,7,11,77
Now, list down the factors of 21
:1,3,7,21
Greatest Common Factor
We found the factors 77,21 . The biggest common factor number is the GCF number.
So the greatest common factor 77,21 is 7.
Lets's calculate LCM of 351,9879
| 3 | 351, 9879 |
| 117, 3293 |
∴ So the LCM of the given numbers is 3 x 117 x 3293 = 1155843
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 7/1155843
Therefore, the GCF of Fractions 77/351,21/9879 is 7/1155843
Least Common Multiple of 351,9879 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 351,9879 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(351,9879) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(351,9879) x common factors =3 x 1 = 3
LCM(351,9879) = ( 351 × 9879 ) / 3
LCM(351,9879) = 3467529 / 3
LCM(351,9879) = 1155843
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FAQs on GCF of Fractions of 77/351, 21/9879
1. What is the HCF of 77,21?
The HCF of 77,21 is 7
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 77/351, 21/9879?
Answer: GCF of Numerators as per given numbers 77/351, 21/9879 is
GCF of Numerators i.e. for 77,21 is 7
LCM of denominators i.e. for 351,9879 is 1155843.
Thus, GCF of Fractions is 7/1155843.Finally, GCF of Fractions for 77/351, 21/9879 is 7/1155843.