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GCF of 891/86, 689/8420

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 891/86, 689/8420 i.e 1/362060 easily. The following is the detailed procedure to determine the greatest common factor of fractions 891/86, 689/8420.

Enter two or more fractions separated by "commas"

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

GCF of:

What is the GCF of 891/86,689/8420?

Given fractions are 891/86,689/8420

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 891/86,689/8420, numerators are 891,689

Denominators are 86,8420

The GCF of 891,689 is 1 .

LCM of 86,8420 is 362060.

The greatest common factor of 891/86,689/8420 = [GCF of 891,689]/[LCM of 86,8420]= 1/362060

Therefore, the GCF of 891/86,689/8420 is 1/362060.

Greatest Common Factor of 891,689

To find the highest common factor of 891,689, we have to find the factors of both numbers and list the highest common factor.

The factors of 891 are 1, 3, 9, 11, 27, 33, 81, 99, 297, 891

The factors of 689 are 1, 13, 53, 689

The HCF of 891,689 is 1.

Lets's calculate GCF of 891,689

Greatest Common Factor (GCF) of 891,689 By Common Division

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

Greatest Common Factor of 891,689 By Matching Biggest Common Factor Method

Greatest Common Factor of 891,689 By Matching Biggest Common Factor Method

Now, list down the factors of 891

:

1,3,9,11,27,33,81,99,297,891

Now, list down the factors of 689

:

1,13,53,689

Greatest Common Factor

We found the factors 891,689 . The biggest common factor number is the GCF number.
So the greatest common factor 891,689 is 1.


Lets's calculate LCM of 86,8420

Lowest Common Multiple of 86,8420 using Common Division

2 86, 8420
43, 4210

∴ So the LCM of the given numbers is 2 x 43 x 4210 = 362060

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/362060

Therefore, the GCF of Fractions 891/86,689/8420 is 1/362060

Least Common Multiple of 86,8420 with GCF Formula

Least Common Multiple of 86,8420 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 86,8420 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(86,8420) = 2

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

GCF(86,8420) x common factors =2 x 1 = 2

LCM(86,8420) = ( 86 × 8420 ) / 2

LCM(86,8420) = 724120 / 2

LCM(86,8420) = 362060


GCF of Fractions Calculation Examples

FAQs on GCF of Fractions of 891/86, 689/8420

1. What is the HCF of 891,689?

The HCF of 891,689 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 891/86, 689/8420?

Answer: GCF of Numerators as per given numbers 891/86, 689/8420 is

GCF of Numerators i.e. for 891,689 is 1

LCM of denominators i.e. for 86,8420 is 362060.

Thus, GCF of Fractions is 1/362060.Finally, GCF of Fractions for 891/86, 689/8420 is 1/362060.