Greatest Common Factor of 20/378, 390/379

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 20/378, 390/379

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 20/378,390/379

Given fractions are 20/378,390/379

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 20,390

Greatest Common Factor of Numerators i.e. GCF of 20,390 is 10 .

LCM of Denominators means LCM of 378,379 as per the given fractions.

LCM of 378,379 is 143262 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 20,390

GCF of Fractions 20/378,390/379 is 10/143262

2 20, 390
5 10, 195
2, 39

∴ So the GCF of the given numbers is 2 x 5 = 10

Greatest Common Factor of 20,390 By Matching Biggest Common Factor Method

Greatest Common Factor of 20,390 By Matching Biggest Common Factor Method

Factors of 20

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

1,2,4,5,10,20

Factors of 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Greatest Common Factor

We found the factors 20,390 . The biggest common factor number is the GCF number.
So the greatest common factor 20,390 is 10.

Lets's calculate LCM of 378,379

Given numbers has no common factors except 1. So, there LCM is their product i.e 143262

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 10/143262

Therefore, the GCF of Fractions 20/378,390/379 is 10/143262

Least Common Multiple of 378,379 with GCF Formula

Least Common Multiple of 378,379 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 378,379 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(378,379) = 1

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

GCF(378,379) x common factors =1 x 1 = 1

LCM(378,379) = ( 378 × 379 ) / 1

LCM(378,379) = 143262 / 1

LCM(378,379) = 143262


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 20/378, 390/379

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 20/378, 390/379?

Answer: GCF of Numerators as per given numbers 20/378, 390/379 is

GCF of Numerators i.e. for 20,390 is 10

LCM of denominators i.e. for 378,379 is 143262.

Thus, GCF of Fractions is 10/143262.Finally, GCF of Fractions for 20/378, 390/379 is 10/143262.