Greatest Common Factor of 23/15, 78/43, 56/61, 90/91

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 23/15, 78/43, 56/61, 90/91

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 23/15,78/43,56/61,90/91

Given fractions are 23/15,78/43,56/61,90/91

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 23,78,56,90

Greatest Common Factor of Numerators i.e. GCF of 23,78,56,90 is 1 .

LCM of Denominators means LCM of 15,43,61,91 as per the given fractions.

LCM of 15,43,61,91 is 3580395 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 23,78,56,90

GCF of Fractions 23/15,78/43,56/61,90/91 is 1/3580395

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

Greatest Common Factor of 23,78,56,90 By Matching Biggest Common Factor Method

Greatest Common Factor of 23,78,56,90 By Matching Biggest Common Factor Method

Factors of 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 56

List of positive integer factors of 56 that divides 56 without a remainder.

1,2,4,7,8,14,28,56

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Greatest Common Factor

We found the factors 23,78,56,90 . The biggest common factor number is the GCF number.
So the greatest common factor 23,78,56,90 is 1.

Lets's calculate LCM of 15,43,61,91

Given numbers has no common factors except 1. So, there LCM is their product i.e 3580395

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/3580395

Therefore, the GCF of Fractions 23/15,78/43,56/61,90/91 is 1/3580395

Least Common Multiple of 15,43,61,91 with GCF Formula

Least Common Multiple of 15,43,61,91 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 15,43,61,91 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(15,43,61,91) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(15,43,61,91) x common factors =1 x 1 = 1

LCM(15,43,61,91) = ( 15 × 43 × 61 × 91 ) / 1

LCM(15,43,61,91) = 3580395 / 1

LCM(15,43,61,91) = 3580395


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 23/15, 78/43, 56/61, 90/91

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 23/15, 78/43, 56/61, 90/91?

Answer: GCF of Numerators as per given numbers 23/15, 78/43, 56/61, 90/91 is

GCF of Numerators i.e. for 23,78,56,90 is 1

LCM of denominators i.e. for 15,43,61,91 is 3580395.

Thus, GCF of Fractions is 1/3580395.Finally, GCF of Fractions for 23/15, 78/43, 56/61, 90/91 is 1/3580395.