Greatest Common Factor of 16/21, 66/47, 664/32

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


GCF of 16/21, 66/47, 664/32

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 16/21,66/47,664/32

Given fractions are 16/21,66/47,664/32

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 16,66,664

Greatest Common Factor of Numerators i.e. GCF of 16,66,664 is 2 .

LCM of Denominators means LCM of 21,47,32 as per the given fractions.

LCM of 21,47,32 is 31584 as it is the smallest common factor for both these numbers.

Lets's calculate GCF of 16,66,664

GCF of Fractions 16/21,66/47,664/32 is 2/31584

2 16, 66, 664
8, 33, 332

∴ So the GCF of the given numbers is 2 = 2

Greatest Common Factor of 16,66,664 By Matching Biggest Common Factor Method

Greatest Common Factor of 16,66,664 By Matching Biggest Common Factor Method

Factors of 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 664

List of positive integer factors of 664 that divides 664 without a remainder.

1,2,4,8,83,166,332,664

Greatest Common Factor

We found the factors 16,66,664 . The biggest common factor number is the GCF number.
So the greatest common factor 16,66,664 is 2.


Lets's calculate LCM of 21,47,32

Given numbers has no common factors except 1. So, there LCM is their product i.e 31584

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/31584

Therefore, the GCF of Fractions 16/21,66/47,664/32 is 2/31584

Least Common Multiple of 21,47,32 with GCF Formula

Least Common Multiple of 21,47,32 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 21,47,32 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(21,47,32) = 1

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

GCF(21,47,32) x common factors =1 x 1 = 1

LCM(21,47,32) = ( 21 × 47 × 32 ) / 1

LCM(21,47,32) = 31584 / 1

LCM(21,47,32) = 31584


GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

GCF of Fractions Calculation Examples

Frequently Asked Questions on Fractional GCF of 16/21, 66/47, 664/32

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 16/21, 66/47, 664/32?

Answer: GCF of Numerators as per given numbers 16/21, 66/47, 664/32 is

GCF of Numerators i.e. for 16,66,664 is 2

LCM of denominators i.e. for 21,47,32 is 31584.

Thus, GCF of Fractions is 2/31584.Finally, GCF of Fractions for 16/21, 66/47, 664/32 is 2/31584.