Greatest Common Factor of 83/20, 85/54, 11/28, 18/817

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 83/20, 85/54, 11/28, 18/817

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 83/20,85/54,11/28,18/817

Given fractions are 83/20,85/54,11/28,18/817

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 83,85,11,18

Greatest Common Factor of Numerators i.e. GCF of 83,85,11,18 is 1 .

LCM of Denominators means LCM of 20,54,28,817 as per the given fractions.

LCM of 20,54,28,817 is 3088260 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 83,85,11,18

GCF of Fractions 83/20,85/54,11/28,18/817 is 1/3088260

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

Greatest Common Factor of 83,85,11,18 By Matching Biggest Common Factor Method

Greatest Common Factor of 83,85,11,18 By Matching Biggest Common Factor Method

Factors of 83

List of positive integer factors of 83 that divides 83 without a remainder.

1,83

Factors of 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 11

List of positive integer factors of 11 that divides 11 without a remainder.

1,11

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Greatest Common Factor

We found the factors 83,85,11,18 . The biggest common factor number is the GCF number.
So the greatest common factor 83,85,11,18 is 1.


Lets's calculate LCM of 20,54,28,817

2 20, 54, 28, 817
2 10, 27, 14, 817
5, 27, 7, 817

∴ So the LCM of the given numbers is 2 x 2 x 5 x 27 x 7 x 817 = 3088260

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/3088260

Therefore, the GCF of Fractions 83/20,85/54,11/28,18/817 is 1/3088260

Least Common Multiple of 20,54,28,817 with GCF Formula

Least Common Multiple of 20,54,28,817 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 20,54,28,817 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(20,54,28,817) = 1

common factors(in case of two or more numbers have common factors) = 8

GCF(20,54,28,817) x common factors =1 x 8 = 8

LCM(20,54,28,817) = ( 20 × 54 × 28 × 817 ) / 8

LCM(20,54,28,817) = 24706080 / 8

LCM(20,54,28,817) = 3088260


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 83/20, 85/54, 11/28, 18/817

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 83/20, 85/54, 11/28, 18/817?

Answer: GCF of Numerators as per given numbers 83/20, 85/54, 11/28, 18/817 is

GCF of Numerators i.e. for 83,85,11,18 is 1

LCM of denominators i.e. for 20,54,28,817 is 3088260.

Thus, GCF of Fractions is 1/3088260.Finally, GCF of Fractions for 83/20, 85/54, 11/28, 18/817 is 1/3088260.