Greatest Common Factor of 78/50, 91/21, 912/872

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 78/50, 91/21, 912/872

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

GCF of:

Greatest Common Factor of 78/50,91/21,912/872

Given fractions are 78/50,91/21,912/872

Formula to find GCF of Fractions is

GCF = GCF of Numerators/LCM of Denominators

As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators

In the given fractions GCF of Numerators means GCF of 78,91,912

Greatest Common Factor of Numerators i.e. GCF of 78,91,912 is 1 .

LCM of Denominators means LCM of 50,21,872 as per the given fractions.

LCM of 50,21,872 is 457800 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 78,91,912

GCF of Fractions 78/50,91/21,912/872 is 1/457800

∴ So GCF of numbers is 1 because of no common factors present between them.

Greatest Common Factor of 78,91,912 By Matching Biggest Common Factor Method

Greatest Common Factor of 78,91,912 By Matching Biggest Common Factor Method

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 912

List of positive integer factors of 912 that divides 912 without a remainder.

1,2,3,4,6,8,12,16,19,24,38,48,57,76,114,152,228,304,456,912

Greatest Common Factor

We found the factors 78,91,912 . The biggest common factor number is the GCF number.
So the greatest common factor 78,91,912 is 1.


Lets's calculate LCM of 50,21,872

2 50, 21, 872
25, 21, 436

∴ So the LCM of the given numbers is 2 x 25 x 21 x 436 = 457800

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/457800

Therefore, the GCF of Fractions 78/50,91/21,912/872 is 1/457800

Least Common Multiple of 50,21,872 with GCF Formula

Least Common Multiple of 50,21,872 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 50,21,872 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(50,21,872) = 1

common factors(in case of two or more numbers have common factors) = 2

GCF(50,21,872) x common factors =1 x 2 = 2

LCM(50,21,872) = ( 50 × 21 × 872 ) / 2

LCM(50,21,872) = 915600 / 2

LCM(50,21,872) = 457800


GCF of Fractions Calculation Examples

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Frequently Asked Questions on Fractional GCF of 78/50, 91/21, 912/872

1. 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.

2. What is the GCF of Fractions for 78/50, 91/21, 912/872?

Answer: GCF of Numerators as per given numbers 78/50, 91/21, 912/872 is

GCF of Numerators i.e. for 78,91,912 is 1

LCM of denominators i.e. for 50,21,872 is 457800.

Thus, GCF of Fractions is 1/457800.Finally, GCF of Fractions for 78/50, 91/21, 912/872 is 1/457800.