Greatest Common Factor of 96/91, 42/81, 77/64, 689/13

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 96/91, 42/81, 77/64, 689/13

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 96/91,42/81,77/64,689/13

Given fractions are 96/91,42/81,77/64,689/13

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 96,42,77,689

Greatest Common Factor of Numerators i.e. GCF of 96,42,77,689 is 1 .

LCM of Denominators means LCM of 91,81,64,13 as per the given fractions.

LCM of 91,81,64,13 is 471744 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 96,42,77,689

GCF of Fractions 96/91,42/81,77/64,689/13 is 1/471744

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

Greatest Common Factor of 96,42,77,689 By Matching Biggest Common Factor Method

Greatest Common Factor of 96,42,77,689 By Matching Biggest Common Factor Method

Factors of 96

List of positive integer factors of 96 that divides 96 without a remainder.

1,2,3,4,6,8,12,16,24,32,48,96

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Factors of 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

Greatest Common Factor

We found the factors 96,42,77,689 . The biggest common factor number is the GCF number.
So the greatest common factor 96,42,77,689 is 1.

Lets's calculate LCM of 91,81,64,13

13 91, 81, 64, 13
7, 81, 64, 1

∴ So the LCM of the given numbers is 13 x 7 x 81 x 64 x 1 = 471744

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/471744

Therefore, the GCF of Fractions 96/91,42/81,77/64,689/13 is 1/471744

Least Common Multiple of 91,81,64,13 with GCF Formula

Least Common Multiple of 91,81,64,13 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 91,81,64,13 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(91,81,64,13) = 1

common factors(in case of two or more numbers have common factors) = 13

GCF(91,81,64,13) x common factors =1 x 13 = 13

LCM(91,81,64,13) = ( 91 × 81 × 64 × 13 ) / 13

LCM(91,81,64,13) = 6132672 / 13

LCM(91,81,64,13) = 471744


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 96/91, 42/81, 77/64, 689/13

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 96/91, 42/81, 77/64, 689/13?

Answer: GCF of Numerators as per given numbers 96/91, 42/81, 77/64, 689/13 is

GCF of Numerators i.e. for 96,42,77,689 is 1

LCM of denominators i.e. for 91,81,64,13 is 471744.

Thus, GCF of Fractions is 1/471744.Finally, GCF of Fractions for 96/91, 42/81, 77/64, 689/13 is 1/471744.