How to Find GCF of 389/676, 155/689?

GCF of 389/676, 155/689

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 389/676, 155/689 i.e 1/35828 easily. The following is the detailed procedure to determine the greatest common factor of fractions 389/676, 155/689.

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 389/676,155/689?

Given fractions are 389/676,155/689

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 389/676,155/689, numerators are 389,155

Denominators are 676,689

The GCF of 389,155 is 1 .

LCM of 676,689 is 35828.

The greatest common factor of 389/676,155/689 = [GCF of 389,155]/[LCM of 676,689]= 1/35828

Therefore, the GCF of 389/676,155/689 is 1/35828.

Greatest Common Factor of 389,155

To find the highest common factor of 389,155, we have to find the factors of both numbers and list the highest common factor.

The factors of 389 are 1, 389

The factors of 155 are 1, 5, 31, 155

The HCF of 389,155 is 1.

Lets's calculate GCF of 389,155

Greatest Common Factor (GCF) of 389,155 By Common Division

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

Greatest Common Factor of 389,155 By Matching Biggest Common Factor Method

Now, list down the factors of 389

1,389

Now, list down the factors of 155

1,5,31,155

Greatest Common Factor

We found the factors 389,155 . The biggest common factor number is the GCF number.
So the greatest common factor 389,155 is 1.

Lets's calculate LCM of 676,689

Lowest Common Multiple of 676,689 using Common Division

13	676, 689
	52, 53

∴ So the LCM of the given numbers is 13 x 52 x 53 = 35828

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/35828

Therefore, the GCF of Fractions 389/676,155/689 is 1/35828

Least Common Multiple of 676,689 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 676,689 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(676,689) = 13

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

GCF(676,689) x common factors =13 x 1 = 13

LCM(676,689) = ( 676 × 689 ) / 13

LCM(676,689) = 465764 / 13

LCM(676,689) = 35828

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FAQs on GCF of Fractions of 389/676, 155/689

1. What is the HCF of 389,155?

The HCF of 389,155 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 389/676, 155/689?

Answer: GCF of Numerators as per given numbers 389/676, 155/689 is

GCF of Numerators i.e. for 389,155 is 1

LCM of denominators i.e. for 676,689 is 35828.

Thus, GCF of Fractions is 1/35828.Finally, GCF of Fractions for 389/676, 155/689 is 1/35828.