Greatest Common Factor of 21/94, 81/248, 654/845

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 21/94, 81/248, 654/845

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 21/94,81/248,654/845

Given fractions are 21/94,81/248,654/845

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 21,81,654

Greatest Common Factor of Numerators i.e. GCF of 21,81,654 is 3 .

LCM of Denominators means LCM of 94,248,845 as per the given fractions.

LCM of 94,248,845 is 9849320 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 21,81,654

GCF of Fractions 21/94,81/248,654/845 is 3/9849320

3 21, 81, 654
7, 27, 218

∴ So the GCF of the given numbers is 3 = 3

Greatest Common Factor of 21,81,654 By Matching Biggest Common Factor Method

Greatest Common Factor of 21,81,654 By Matching Biggest Common Factor Method

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 654

List of positive integer factors of 654 that divides 654 without a remainder.

1,2,3,6,109,218,327,654

Greatest Common Factor

We found the factors 21,81,654 . The biggest common factor number is the GCF number.
So the greatest common factor 21,81,654 is 3.


Lets's calculate LCM of 94,248,845

2 94, 248, 845
47, 124, 845

∴ So the LCM of the given numbers is 2 x 47 x 124 x 845 = 9849320

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/9849320

Therefore, the GCF of Fractions 21/94,81/248,654/845 is 3/9849320

Least Common Multiple of 94,248,845 with GCF Formula

Least Common Multiple of 94,248,845 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 94,248,845 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(94,248,845) = 1

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

GCF(94,248,845) x common factors =1 x 2 = 2

LCM(94,248,845) = ( 94 × 248 × 845 ) / 2

LCM(94,248,845) = 19698640 / 2

LCM(94,248,845) = 9849320


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 21/94, 81/248, 654/845

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 21/94, 81/248, 654/845?

Answer: GCF of Numerators as per given numbers 21/94, 81/248, 654/845 is

GCF of Numerators i.e. for 21,81,654 is 3

LCM of denominators i.e. for 94,248,845 is 9849320.

Thus, GCF of Fractions is 3/9849320.Finally, GCF of Fractions for 21/94, 81/248, 654/845 is 3/9849320.