How to Find GCF of 25/60, 56/65, 781/398?

GCF of 25/60, 56/65, 781/398

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 25/60, 56/65, 781/398 i.e 1/155220 easily. The following is the detailed procedure to determine the greatest common factor of fractions 25/60, 56/65, 781/398.

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 25/60,56/65,781/398?

Given fractions are 25/60,56/65,781/398

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 25/60,56/65,781/398, numerators are 25,56,781

Denominators are 60,65,398

The GCF of 25,56,781 is 1 .

LCM of 60,65,398 is 155220.

The greatest common factor of 25/60,56/65,781/398 = [GCF of 25,56,781]/[LCM of 60,65,398]= 1/155220

Therefore, the GCF of 25/60,56/65,781/398 is 1/155220.

Greatest Common Factor of 25,56,781

To find the highest common factor of 25,56,781, we have to find the factors of both numbers and list the highest common factor.

The factors of 25 are 1, 5, 25

The factors of 56 are 1, 2, 4, 7, 8, 14, 28, 56

The factors of 781 are 1, 11, 71, 781

The HCF of 25,56,781 is 1.

Lets's calculate GCF of 25,56,781

Greatest Common Factor (GCF) of 25,56,781 By Common Division

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

Greatest Common Factor of 25,56,781 By Matching Biggest Common Factor Method

Now, list down the factors of 25

1,5,25

Now, list down the factors of 56

1,2,4,7,8,14,28,56

Now, list down the factors of 781

1,11,71,781

Greatest Common Factor

We found the factors 25,56,781 . The biggest common factor number is the GCF number.
So the greatest common factor 25,56,781 is 1.

Lets's calculate LCM of 60,65,398

Lowest Common Multiple of 60,65,398 using Common Division

2	60, 65, 398
5	30, 65, 199
	6, 13, 199

∴ So the LCM of the given numbers is 2 x 5 x 6 x 13 x 199 = 155220

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/155220

Therefore, the GCF of Fractions 25/60,56/65,781/398 is 1/155220

Least Common Multiple of 60,65,398 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 60,65,398 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(60,65,398) = 1

common factors(in case of two or more numbers have common factors) = 10

GCF(60,65,398) x common factors =1 x 10 = 10

LCM(60,65,398) = ( 60 × 65 × 398 ) / 10

LCM(60,65,398) = 1552200 / 10

LCM(60,65,398) = 155220

GCF of Fractions Calculation Examples

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FAQs on GCF of Fractions of 25/60, 56/65, 781/398

1. What is the HCF of 25,56,781?

The HCF of 25,56,781 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 25/60, 56/65, 781/398?

Answer: GCF of Numerators as per given numbers 25/60, 56/65, 781/398 is

GCF of Numerators i.e. for 25,56,781 is 1

LCM of denominators i.e. for 60,65,398 is 155220.

Thus, GCF of Fractions is 1/155220.Finally, GCF of Fractions for 25/60, 56/65, 781/398 is 1/155220.