Greatest Common Factor of 29/27, 20/42, 55/56, 68/80

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 29/27, 20/42, 55/56, 68/80

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 29/27,20/42,55/56,68/80

Given fractions are 29/27,20/42,55/56,68/80

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 29,20,55,68

Greatest Common Factor of Numerators i.e. GCF of 29,20,55,68 is 1 .

LCM of Denominators means LCM of 27,42,56,80 as per the given fractions.

LCM of 27,42,56,80 is 15120 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 29,20,55,68

GCF of Fractions 29/27,20/42,55/56,68/80 is 1/15120

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

Greatest Common Factor of 29,20,55,68 By Matching Biggest Common Factor Method

Greatest Common Factor of 29,20,55,68 By Matching Biggest Common Factor Method

Factors of 29

List of positive integer factors of 29 that divides 29 without a remainder.

1,29

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Greatest Common Factor

We found the factors 29,20,55,68 . The biggest common factor number is the GCF number.
So the greatest common factor 29,20,55,68 is 1.

Lets's calculate LCM of 27,42,56,80

2 27, 42, 56, 80
2 27, 21, 28, 40
2 27, 21, 14, 20
3 27, 21, 7, 10
7 9, 7, 7, 10
9, 1, 1, 10

∴ So the LCM of the given numbers is 2 x 2 x 2 x 3 x 7 x 9 x 1 x 1 x 10 = 15120

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/15120

Therefore, the GCF of Fractions 29/27,20/42,55/56,68/80 is 1/15120

Least Common Multiple of 27,42,56,80 with GCF Formula

Least Common Multiple of 27,42,56,80 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 27,42,56,80 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(27,42,56,80) = 1

common factors(in case of two or more numbers have common factors) = 336

GCF(27,42,56,80) x common factors =1 x 336 = 336

LCM(27,42,56,80) = ( 27 × 42 × 56 × 80 ) / 336

LCM(27,42,56,80) = 5080320 / 336

LCM(27,42,56,80) = 15120


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 29/27, 20/42, 55/56, 68/80

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 29/27, 20/42, 55/56, 68/80?

Answer: GCF of Numerators as per given numbers 29/27, 20/42, 55/56, 68/80 is

GCF of Numerators i.e. for 29,20,55,68 is 1

LCM of denominators i.e. for 27,42,56,80 is 15120.

Thus, GCF of Fractions is 1/15120.Finally, GCF of Fractions for 29/27, 20/42, 55/56, 68/80 is 1/15120.