Greatest Common Factor of 39/21, 19/69, 51/48, 67/431

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 39/21, 19/69, 51/48, 67/431

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 39/21,19/69,51/48,67/431

Given fractions are 39/21,19/69,51/48,67/431

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 39,19,51,67

Greatest Common Factor of Numerators i.e. GCF of 39,19,51,67 is 1 .

LCM of Denominators means LCM of 21,69,48,431 as per the given fractions.

LCM of 21,69,48,431 is 3330768 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 39,19,51,67

GCF of Fractions 39/21,19/69,51/48,67/431 is 1/3330768

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

Greatest Common Factor of 39,19,51,67 By Matching Biggest Common Factor Method

Greatest Common Factor of 39,19,51,67 By Matching Biggest Common Factor Method

Factors of 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 67

List of positive integer factors of 67 that divides 67 without a remainder.

1,67

Greatest Common Factor

We found the factors 39,19,51,67 . The biggest common factor number is the GCF number.
So the greatest common factor 39,19,51,67 is 1.


Lets's calculate LCM of 21,69,48,431

3 21, 69, 48, 431
7, 23, 16, 431

∴ So the LCM of the given numbers is 3 x 7 x 23 x 16 x 431 = 3330768

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/3330768

Therefore, the GCF of Fractions 39/21,19/69,51/48,67/431 is 1/3330768

Least Common Multiple of 21,69,48,431 with GCF Formula

Least Common Multiple of 21,69,48,431 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 21,69,48,431 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,69,48,431) = 1

common factors(in case of two or more numbers have common factors) = 9

GCF(21,69,48,431) x common factors =1 x 9 = 9

LCM(21,69,48,431) = ( 21 × 69 × 48 × 431 ) / 9

LCM(21,69,48,431) = 29976912 / 9

LCM(21,69,48,431) = 3330768


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 39/21, 19/69, 51/48, 67/431

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 39/21, 19/69, 51/48, 67/431?

Answer: GCF of Numerators as per given numbers 39/21, 19/69, 51/48, 67/431 is

GCF of Numerators i.e. for 39,19,51,67 is 1

LCM of denominators i.e. for 21,69,48,431 is 3330768.

Thus, GCF of Fractions is 1/3330768.Finally, GCF of Fractions for 39/21, 19/69, 51/48, 67/431 is 1/3330768.