How to Find GCF of 78/940, 38/287, 821/755?

GCF of 78/940, 38/287, 821/755

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 78/940, 38/287, 821/755 i.e 1/40736780 easily. The following is the detailed procedure to determine the greatest common factor of fractions 78/940, 38/287, 821/755.

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 78/940,38/287,821/755?

Given fractions are 78/940,38/287,821/755

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 78/940,38/287,821/755, numerators are 78,38,821

Denominators are 940,287,755

The GCF of 78,38,821 is 1 .

LCM of 940,287,755 is 40736780.

The greatest common factor of 78/940,38/287,821/755 = [GCF of 78,38,821]/[LCM of 940,287,755]= 1/40736780

Therefore, the GCF of 78/940,38/287,821/755 is 1/40736780.

Greatest Common Factor of 78,38,821

To find the highest common factor of 78,38,821, we have to find the factors of both numbers and list the highest common factor.

The factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78

The factors of 38 are 1, 2, 19, 38

The factors of 821 are 1, 821

The HCF of 78,38,821 is 1.

Lets's calculate GCF of 78,38,821

Greatest Common Factor (GCF) of 78,38,821 By Common Division

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

Greatest Common Factor of 78,38,821 By Matching Biggest Common Factor Method

Now, list down the factors of 78

1,2,3,6,13,26,39,78

Now, list down the factors of 38

1,2,19,38

Now, list down the factors of 821

1,821

Greatest Common Factor

We found the factors 78,38,821 . The biggest common factor number is the GCF number.
So the greatest common factor 78,38,821 is 1.

Lets's calculate LCM of 940,287,755

Lowest Common Multiple of 940,287,755 using Common Division

5	940, 287, 755
	188, 287, 151

∴ So the LCM of the given numbers is 5 x 188 x 287 x 151 = 40736780

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/40736780

Therefore, the GCF of Fractions 78/940,38/287,821/755 is 1/40736780

Least Common Multiple of 940,287,755 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 940,287,755 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(940,287,755) = 1

common factors(in case of two or more numbers have common factors) = 5

GCF(940,287,755) x common factors =1 x 5 = 5

LCM(940,287,755) = ( 940 × 287 × 755 ) / 5

LCM(940,287,755) = 203683900 / 5

LCM(940,287,755) = 40736780

GCF of Fractions Calculation Examples

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FAQs on GCF of Fractions of 78/940, 38/287, 821/755

1. What is the HCF of 78,38,821?

The HCF of 78,38,821 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 78/940, 38/287, 821/755?

Answer: GCF of Numerators as per given numbers 78/940, 38/287, 821/755 is

GCF of Numerators i.e. for 78,38,821 is 1

LCM of denominators i.e. for 940,287,755 is 40736780.

Thus, GCF of Fractions is 1/40736780.Finally, GCF of Fractions for 78/940, 38/287, 821/755 is 1/40736780.