How to Find GCF of 3/90, 15/247, 42/961?

GCF of 3/90, 15/247, 42/961

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 3/90, 15/247, 42/961 i.e 3/21363030 easily. The following is the detailed procedure to determine the greatest common factor of fractions 3/90, 15/247, 42/961.

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 3/90,15/247,42/961?

Given fractions are 3/90,15/247,42/961

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 3/90,15/247,42/961, numerators are 3,15,42

Denominators are 90,247,961

The GCF of 3,15,42 is 3 .

LCM of 90,247,961 is 21363030.

The greatest common factor of 3/90,15/247,42/961 = [GCF of 3,15,42]/[LCM of 90,247,961]= 3/21363030

Therefore, the GCF of 3/90,15/247,42/961 is 3/21363030.

Greatest Common Factor of 3,15,42

To find the highest common factor of 3,15,42, we have to find the factors of both numbers and list the highest common factor.

The factors of 3 are 1, 3

The factors of 15 are 1, 3, 5, 15

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42

The HCF of 3,15,42 is 3.

Lets's calculate GCF of 3,15,42

Greatest Common Factor (GCF) of 3,15,42 By Common Division

3	3, 15, 42
	1, 5, 14

∴ So the GCF of the given numbers is 3 = 3

Greatest Common Factor of 3,15,42 By Matching Biggest Common Factor Method

Now, list down the factors of 3

1,3

Now, list down the factors of 15

1,3,5,15

Now, list down the factors of 42

1,2,3,6,7,14,21,42

Greatest Common Factor

We found the factors 3,15,42 . The biggest common factor number is the GCF number.
So the greatest common factor 3,15,42 is 3.

Lets's calculate LCM of 90,247,961

Lowest Common Multiple of 90,247,961 using Common Division

Given numbers has no common factors except 1. So, there LCM is their product i.e 21363030

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/21363030

Therefore, the GCF of Fractions 3/90,15/247,42/961 is 3/21363030

Least Common Multiple of 90,247,961 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 90,247,961 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(90,247,961) = 1

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

GCF(90,247,961) x common factors =1 x 1 = 1

LCM(90,247,961) = ( 90 × 247 × 961 ) / 1

LCM(90,247,961) = 21363030 / 1

LCM(90,247,961) = 21363030

GCF of Fractions Calculation Examples

Here are some samples of GCF of Fractions calculations.

FAQs on GCF of Fractions of 3/90, 15/247, 42/961

1. What is the HCF of 3,15,42?

The HCF of 3,15,42 is 3

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 3/90, 15/247, 42/961?

Answer: GCF of Numerators as per given numbers 3/90, 15/247, 42/961 is

GCF of Numerators i.e. for 3,15,42 is 3

LCM of denominators i.e. for 90,247,961 is 21363030.

Thus, GCF of Fractions is 3/21363030.Finally, GCF of Fractions for 3/90, 15/247, 42/961 is 3/21363030.