Greatest Common Factor of 75/66, 48/42, 57/80, 81/321

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 75/66, 48/42, 57/80, 81/321

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 75/66,48/42,57/80,81/321

Given fractions are 75/66,48/42,57/80,81/321

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 75,48,57,81

Greatest Common Factor of Numerators i.e. GCF of 75,48,57,81 is 3 .

LCM of Denominators means LCM of 66,42,80,321 as per the given fractions.

LCM of 66,42,80,321 is 1977360 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 75,48,57,81

GCF of Fractions 75/66,48/42,57/80,81/321 is 3/1977360

3 75, 48, 57, 81
25, 16, 19, 27

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

Greatest Common Factor of 75,48,57,81 By Matching Biggest Common Factor Method

Greatest Common Factor of 75,48,57,81 By Matching Biggest Common Factor Method

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 48

List of positive integer factors of 48 that divides 48 without a remainder.

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

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 75,48,57,81 . The biggest common factor number is the GCF number.
So the greatest common factor 75,48,57,81 is 3.

Lets's calculate LCM of 66,42,80,321

2 66, 42, 80, 321
3 33, 21, 40, 321
11, 7, 40, 107

∴ So the LCM of the given numbers is 2 x 3 x 11 x 7 x 40 x 107 = 1977360

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/1977360

Therefore, the GCF of Fractions 75/66,48/42,57/80,81/321 is 3/1977360

Least Common Multiple of 66,42,80,321 with GCF Formula

Least Common Multiple of 66,42,80,321 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 66,42,80,321 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(66,42,80,321) = 1

common factors(in case of two or more numbers have common factors) = 36

GCF(66,42,80,321) x common factors =1 x 36 = 36

LCM(66,42,80,321) = ( 66 × 42 × 80 × 321 ) / 36

LCM(66,42,80,321) = 71184960 / 36

LCM(66,42,80,321) = 1977360


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 75/66, 48/42, 57/80, 81/321

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 75/66, 48/42, 57/80, 81/321?

Answer: GCF of Numerators as per given numbers 75/66, 48/42, 57/80, 81/321 is

GCF of Numerators i.e. for 75,48,57,81 is 3

LCM of denominators i.e. for 66,42,80,321 is 1977360.

Thus, GCF of Fractions is 3/1977360.Finally, GCF of Fractions for 75/66, 48/42, 57/80, 81/321 is 3/1977360.