Greatest Common Factor of 991/10, 286/54, 409/21

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 991/10, 286/54, 409/21

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 991/10,286/54,409/21

Given fractions are 991/10,286/54,409/21

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 991,286,409

Greatest Common Factor of Numerators i.e. GCF of 991,286,409 is 1 .

LCM of Denominators means LCM of 10,54,21 as per the given fractions.

LCM of 10,54,21 is 1890 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 991,286,409

GCF of Fractions 991/10,286/54,409/21 is 1/1890

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

Greatest Common Factor of 991,286,409 By Matching Biggest Common Factor Method

Greatest Common Factor of 991,286,409 By Matching Biggest Common Factor Method

Factors of 991

List of positive integer factors of 991 that divides 991 without a remainder.

1,991

Factors of 286

List of positive integer factors of 286 that divides 286 without a remainder.

1,2,11,13,22,26,143,286

Factors of 409

List of positive integer factors of 409 that divides 409 without a remainder.

1,409

Greatest Common Factor

We found the factors 991,286,409 . The biggest common factor number is the GCF number.
So the greatest common factor 991,286,409 is 1.

Lets's calculate LCM of 10,54,21

2 10, 54, 21
3 5, 27, 21
5, 9, 7

∴ So the LCM of the given numbers is 2 x 3 x 5 x 9 x 7 = 1890

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/1890

Therefore, the GCF of Fractions 991/10,286/54,409/21 is 1/1890

Least Common Multiple of 10,54,21 with GCF Formula

Least Common Multiple of 10,54,21 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 10,54,21 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(10,54,21) = 1

common factors(in case of two or more numbers have common factors) = 6

GCF(10,54,21) x common factors =1 x 6 = 6

LCM(10,54,21) = ( 10 × 54 × 21 ) / 6

LCM(10,54,21) = 11340 / 6

LCM(10,54,21) = 1890


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 991/10, 286/54, 409/21

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 991/10, 286/54, 409/21?

Answer: GCF of Numerators as per given numbers 991/10, 286/54, 409/21 is

GCF of Numerators i.e. for 991,286,409 is 1

LCM of denominators i.e. for 10,54,21 is 1890.

Thus, GCF of Fractions is 1/1890.Finally, GCF of Fractions for 991/10, 286/54, 409/21 is 1/1890.