How to Find GCF of 22/17, 90/91, 42/248?

GCF of 22/17, 90/91, 42/248

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 22/17, 90/91, 42/248 i.e 2/383656 easily. The following is the detailed procedure to determine the greatest common factor of fractions 22/17, 90/91, 42/248.

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 22/17,90/91,42/248?

Given fractions are 22/17,90/91,42/248

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 22/17,90/91,42/248, numerators are 22,90,42

Denominators are 17,91,248

The GCF of 22,90,42 is 2 .

LCM of 17,91,248 is 383656.

The greatest common factor of 22/17,90/91,42/248 = [GCF of 22,90,42]/[LCM of 17,91,248]= 2/383656

Therefore, the GCF of 22/17,90/91,42/248 is 2/383656.

Greatest Common Factor of 22,90,42

To find the highest common factor of 22,90,42, we have to find the factors of both numbers and list the highest common factor.

The factors of 22 are 1, 2, 11, 22

The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90

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

The HCF of 22,90,42 is 2.

Lets's calculate GCF of 22,90,42

Greatest Common Factor (GCF) of 22,90,42 By Common Division

2	22, 90, 42
	11, 45, 21

∴ So the GCF of the given numbers is 2 = 2

Greatest Common Factor of 22,90,42 By Matching Biggest Common Factor Method

Now, list down the factors of 22

1,2,11,22

Now, list down the factors of 90

1,2,3,5,6,9,10,15,18,30,45,90

Now, list down the factors of 42

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

Greatest Common Factor

We found the factors 22,90,42 . The biggest common factor number is the GCF number.
So the greatest common factor 22,90,42 is 2.

Lets's calculate LCM of 17,91,248

Lowest Common Multiple of 17,91,248 using Common Division

Given numbers has no common factors except 1. So, there LCM is their product i.e 383656

Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/383656

Therefore, the GCF of Fractions 22/17,90/91,42/248 is 2/383656

Least Common Multiple of 17,91,248 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 17,91,248 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(17,91,248) = 1

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

GCF(17,91,248) x common factors =1 x 1 = 1

LCM(17,91,248) = ( 17 × 91 × 248 ) / 1

LCM(17,91,248) = 383656 / 1

LCM(17,91,248) = 383656

GCF of Fractions Calculation Examples

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FAQs on GCF of Fractions of 22/17, 90/91, 42/248

1. What is the HCF of 22,90,42?

The HCF of 22,90,42 is 2

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 22/17, 90/91, 42/248?

Answer: GCF of Numerators as per given numbers 22/17, 90/91, 42/248 is

GCF of Numerators i.e. for 22,90,42 is 2

LCM of denominators i.e. for 17,91,248 is 383656.

Thus, GCF of Fractions is 2/383656.Finally, GCF of Fractions for 22/17, 90/91, 42/248 is 2/383656.