Greatest Common Factor of 78/47, 58/77, 12/31, 20/789

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 78/47, 58/77, 12/31, 20/789

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 78/47,58/77,12/31,20/789

Given fractions are 78/47,58/77,12/31,20/789

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 78,58,12,20

Greatest Common Factor of Numerators i.e. GCF of 78,58,12,20 is 2 .

LCM of Denominators means LCM of 47,77,31,789 as per the given fractions.

LCM of 47,77,31,789 is 88517121 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 78,58,12,20

GCF of Fractions 78/47,58/77,12/31,20/789 is 2/88517121

2 78, 58, 12, 20
39, 29, 6, 10

∴ So the GCF of the given numbers is 2 = 2

Greatest Common Factor of 78,58,12,20 By Matching Biggest Common Factor Method

Greatest Common Factor of 78,58,12,20 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 58

List of positive integer factors of 58 that divides 58 without a remainder.

1,2,29,58

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Greatest Common Factor

We found the factors 78,58,12,20 . The biggest common factor number is the GCF number.
So the greatest common factor 78,58,12,20 is 2.

Lets's calculate LCM of 47,77,31,789

Given numbers has no common factors except 1. So, there LCM is their product i.e 88517121

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/88517121

Therefore, the GCF of Fractions 78/47,58/77,12/31,20/789 is 2/88517121

Least Common Multiple of 47,77,31,789 with GCF Formula

Least Common Multiple of 47,77,31,789 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 47,77,31,789 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(47,77,31,789) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(47,77,31,789) x common factors =1 x 1 = 1

LCM(47,77,31,789) = ( 47 × 77 × 31 × 789 ) / 1

LCM(47,77,31,789) = 88517121 / 1

LCM(47,77,31,789) = 88517121


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

Frequently Asked Questions on Fractional GCF of 78/47, 58/77, 12/31, 20/789

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 78/47, 58/77, 12/31, 20/789?

Answer: GCF of Numerators as per given numbers 78/47, 58/77, 12/31, 20/789 is

GCF of Numerators i.e. for 78,58,12,20 is 2

LCM of denominators i.e. for 47,77,31,789 is 88517121.

Thus, GCF of Fractions is 2/88517121.Finally, GCF of Fractions for 78/47, 58/77, 12/31, 20/789 is 2/88517121.