Greatest Common Factor of 84/76, 645/12, 642/210

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

GCF of 84/76, 645/12, 642/210

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 84/76,645/12,642/210

Given fractions are 84/76,645/12,642/210

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 84,645,642

Greatest Common Factor of Numerators i.e. GCF of 84,645,642 is 3 .

LCM of Denominators means LCM of 76,12,210 as per the given fractions.

LCM of 76,12,210 is 7980 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 84,645,642

GCF of Fractions 84/76,645/12,642/210 is 3/7980

3 84, 645, 642
28, 215, 214

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

Greatest Common Factor of 84,645,642 By Matching Biggest Common Factor Method

Greatest Common Factor of 84,645,642 By Matching Biggest Common Factor Method

Factors of 84

List of positive integer factors of 84 that divides 84 without a remainder.

1,2,3,4,6,7,12,14,21,28,42,84

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Greatest Common Factor

We found the factors 84,645,642 . The biggest common factor number is the GCF number.
So the greatest common factor 84,645,642 is 3.

Lets's calculate LCM of 76,12,210

2 76, 12, 210
2 38, 6, 105
3 19, 3, 105
19, 1, 35

∴ So the LCM of the given numbers is 2 x 2 x 3 x 19 x 1 x 35 = 7980

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/7980

Therefore, the GCF of Fractions 84/76,645/12,642/210 is 3/7980

Least Common Multiple of 76,12,210 with GCF Formula

Least Common Multiple of 76,12,210 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 76,12,210 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(76,12,210) = 2

common factors(in case of two or more numbers have common factors) = 12

GCF(76,12,210) x common factors =2 x 12 = 24

LCM(76,12,210) = ( 76 × 12 × 210 ) / 24

LCM(76,12,210) = 191520 / 24

LCM(76,12,210) = 7980


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 84/76, 645/12, 642/210

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 84/76, 645/12, 642/210?

Answer: GCF of Numerators as per given numbers 84/76, 645/12, 642/210 is

GCF of Numerators i.e. for 84,645,642 is 3

LCM of denominators i.e. for 76,12,210 is 7980.

Thus, GCF of Fractions is 3/7980.Finally, GCF of Fractions for 84/76, 645/12, 642/210 is 3/7980.