Greatest Common Factor of 30/57, 20/78, 506/637

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 30/57, 20/78, 506/637

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 30/57,20/78,506/637

Given fractions are 30/57,20/78,506/637

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 30,20,506

Greatest Common Factor of Numerators i.e. GCF of 30,20,506 is 2 .

LCM of Denominators means LCM of 57,78,637 as per the given fractions.

LCM of 57,78,637 is 72618 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 30,20,506

GCF of Fractions 30/57,20/78,506/637 is 2/72618

2 30, 20, 506
15, 10, 253

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

Greatest Common Factor of 30,20,506 By Matching Biggest Common Factor Method

Greatest Common Factor of 30,20,506 By Matching Biggest Common Factor Method

Factors of 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 20

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

1,2,4,5,10,20

Factors of 506

List of positive integer factors of 506 that divides 506 without a remainder.

1,2,11,22,23,46,253,506

Greatest Common Factor

We found the factors 30,20,506 . The biggest common factor number is the GCF number.
So the greatest common factor 30,20,506 is 2.


Lets's calculate LCM of 57,78,637

3 57, 78, 637
13 19, 26, 637
19, 2, 49

∴ So the LCM of the given numbers is 3 x 13 x 19 x 2 x 49 = 72618

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/72618

Therefore, the GCF of Fractions 30/57,20/78,506/637 is 2/72618

Least Common Multiple of 57,78,637 with GCF Formula

Least Common Multiple of 57,78,637 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 57,78,637 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(57,78,637) = 1

common factors(in case of two or more numbers have common factors) = 39

GCF(57,78,637) x common factors =1 x 39 = 39

LCM(57,78,637) = ( 57 × 78 × 637 ) / 39

LCM(57,78,637) = 2832102 / 39

LCM(57,78,637) = 72618


GCF of Fractions Calculation Examples

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Frequently Asked Questions on Fractional GCF of 30/57, 20/78, 506/637

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 30/57, 20/78, 506/637?

Answer: GCF of Numerators as per given numbers 30/57, 20/78, 506/637 is

GCF of Numerators i.e. for 30,20,506 is 2

LCM of denominators i.e. for 57,78,637 is 72618.

Thus, GCF of Fractions is 2/72618.Finally, GCF of Fractions for 30/57, 20/78, 506/637 is 2/72618.