How to Find GCF of 91/728, 77/494, 109/912?

GCF of 91/728, 77/494, 109/912

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 91/728, 77/494, 109/912 i.e 1/82992 easily. The following is the detailed procedure to determine the greatest common factor of fractions 91/728, 77/494, 109/912.

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 91/728,77/494,109/912?

Given fractions are 91/728,77/494,109/912

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 91/728,77/494,109/912, numerators are 91,77,109

Denominators are 728,494,912

The GCF of 91,77,109 is 1 .

LCM of 728,494,912 is 82992.

The greatest common factor of 91/728,77/494,109/912 = [GCF of 91,77,109]/[LCM of 728,494,912]= 1/82992

Therefore, the GCF of 91/728,77/494,109/912 is 1/82992.

Greatest Common Factor of 91,77,109

To find the highest common factor of 91,77,109, we have to find the factors of both numbers and list the highest common factor.

The factors of 91 are 1, 7, 13, 91

The factors of 77 are 1, 7, 11, 77

The factors of 109 are 1, 109

The HCF of 91,77,109 is 1.

Lets's calculate GCF of 91,77,109

Greatest Common Factor (GCF) of 91,77,109 By Common Division

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

Greatest Common Factor of 91,77,109 By Matching Biggest Common Factor Method

Now, list down the factors of 91

1,7,13,91

Now, list down the factors of 77

1,7,11,77

Now, list down the factors of 109

1,109

Greatest Common Factor

We found the factors 91,77,109 . The biggest common factor number is the GCF number.
So the greatest common factor 91,77,109 is 1.

Lets's calculate LCM of 728,494,912

Lowest Common Multiple of 728,494,912 using Common Division

2	728, 494, 912
2	364, 247, 456
2	182, 247, 228
13	91, 247, 114
19	7, 19, 114
	7, 1, 6

∴ So the LCM of the given numbers is 2 x 2 x 2 x 13 x 19 x 7 x 1 x 6 = 82992

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/82992

Therefore, the GCF of Fractions 91/728,77/494,109/912 is 1/82992

Least Common Multiple of 728,494,912 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 728,494,912 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(728,494,912) = 2

common factors(in case of two or more numbers have common factors) = 1976

GCF(728,494,912) x common factors =2 x 1976 = 3952

LCM(728,494,912) = ( 728 × 494 × 912 ) / 3952

LCM(728,494,912) = 327984384 / 3952

LCM(728,494,912) = 82992

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FAQs on GCF of Fractions of 91/728, 77/494, 109/912

1. What is the HCF of 91,77,109?

The HCF of 91,77,109 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 91/728, 77/494, 109/912?

Answer: GCF of Numerators as per given numbers 91/728, 77/494, 109/912 is

GCF of Numerators i.e. for 91,77,109 is 1

LCM of denominators i.e. for 728,494,912 is 82992.

Thus, GCF of Fractions is 1/82992.Finally, GCF of Fractions for 91/728, 77/494, 109/912 is 1/82992.