How to Find GCF of 20/247, 43/645, 961/438?

GCF of 20/247, 43/645, 961/438

Created By : Veerendra
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023

Use our free GCF of Fractions Calculator tool to compute the GCF of 20/247, 43/645, 961/438 i.e 1/23259990 easily. The following is the detailed procedure to determine the greatest common factor of fractions 20/247, 43/645, 961/438.

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

What is the GCF of 20/247,43/645,961/438?

Given fractions are 20/247,43/645,961/438

To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by

GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators

In the fractions 20/247,43/645,961/438, numerators are 20,43,961

Denominators are 247,645,438

The GCF of 20,43,961 is 1 .

LCM of 247,645,438 is 23259990.

The greatest common factor of 20/247,43/645,961/438 = [GCF of 20,43,961]/[LCM of 247,645,438]= 1/23259990

Therefore, the GCF of 20/247,43/645,961/438 is 1/23259990.

Greatest Common Factor of 20,43,961

To find the highest common factor of 20,43,961, we have to find the factors of both numbers and list the highest common factor.

The factors of 20 are 1, 2, 4, 5, 10, 20

The factors of 43 are 1, 43

The factors of 961 are 1, 31, 961

The HCF of 20,43,961 is 1.

Lets's calculate GCF of 20,43,961

Greatest Common Factor (GCF) of 20,43,961 By Common Division

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

Greatest Common Factor of 20,43,961 By Matching Biggest Common Factor Method

Now, list down the factors of 20

1,2,4,5,10,20

Now, list down the factors of 43

1,43

Now, list down the factors of 961

1,31,961

Greatest Common Factor

We found the factors 20,43,961 . The biggest common factor number is the GCF number.
So the greatest common factor 20,43,961 is 1.

Lets's calculate LCM of 247,645,438

Lowest Common Multiple of 247,645,438 using Common Division

3	247, 645, 438
	247, 215, 146

∴ So the LCM of the given numbers is 3 x 247 x 215 x 146 = 23259990

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/23259990

Therefore, the GCF of Fractions 20/247,43/645,961/438 is 1/23259990

Least Common Multiple of 247,645,438 with GCF Formula

The formula of LCM is LCM(a₁,a₂,a₃....,a_n) = ( a₁ × a₂ × a₃ × .... × a_n) / GCF(a₁,a₂,a₃....,a_n) x common factors(if more than 2 numbers have common factors).

We need to calculate greatest common factor of 247,645,438 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(247,645,438) = 1

common factors(in case of two or more numbers have common factors) = 3

GCF(247,645,438) x common factors =1 x 3 = 3

LCM(247,645,438) = ( 247 × 645 × 438 ) / 3

LCM(247,645,438) = 69779970 / 3

LCM(247,645,438) = 23259990

GCF of Fractions Calculation Examples

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FAQs on GCF of Fractions of 20/247, 43/645, 961/438

1. What is the HCF of 20,43,961?

The HCF of 20,43,961 is 1

2. What is the GCF of a fraction?

The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.

3. 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.

4. What is the GCF of Fractions for 20/247, 43/645, 961/438?

Answer: GCF of Numerators as per given numbers 20/247, 43/645, 961/438 is

GCF of Numerators i.e. for 20,43,961 is 1

LCM of denominators i.e. for 247,645,438 is 23259990.

Thus, GCF of Fractions is 1/23259990.Finally, GCF of Fractions for 20/247, 43/645, 961/438 is 1/23259990.