Greatest Common Factor of 21/476, 660/985

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 21/476, 660/985

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 21/476,660/985

Given fractions are 21/476,660/985

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 21,660

Greatest Common Factor of Numerators i.e. GCF of 21,660 is 3 .

LCM of Denominators means LCM of 476,985 as per the given fractions.

LCM of 476,985 is 468860 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 21,660

GCF of Fractions 21/476,660/985 is 3/468860

3 21, 660
7, 220

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

Greatest Common Factor of 21,660 By Matching Biggest Common Factor Method

Greatest Common Factor of 21,660 By Matching Biggest Common Factor Method

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 660

List of positive integer factors of 660 that divides 660 without a remainder.

1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660

Greatest Common Factor

We found the factors 21,660 . The biggest common factor number is the GCF number.
So the greatest common factor 21,660 is 3.


Lets's calculate LCM of 476,985

Given numbers has no common factors except 1. So, there LCM is their product i.e 468860

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/468860

Therefore, the GCF of Fractions 21/476,660/985 is 3/468860

Least Common Multiple of 476,985 with GCF Formula

Least Common Multiple of 476,985 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 476,985 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(476,985) = 1

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

GCF(476,985) x common factors =1 x 1 = 1

LCM(476,985) = ( 476 × 985 ) / 1

LCM(476,985) = 468860 / 1

LCM(476,985) = 468860


GCF of Fractions Calculation Examples

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GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 21/476, 660/985

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 21/476, 660/985?

Answer: GCF of Numerators as per given numbers 21/476, 660/985 is

GCF of Numerators i.e. for 21,660 is 3

LCM of denominators i.e. for 476,985 is 468860.

Thus, GCF of Fractions is 3/468860.Finally, GCF of Fractions for 21/476, 660/985 is 3/468860.