GCF of 20/39, 43/66, 221/676
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 20/39, 43/66, 221/676 i.e 1/22308 easily. The following is the detailed procedure to determine the greatest common factor of fractions 20/39, 43/66, 221/676.
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 20/39,43/66,221/676?
Given fractions are 20/39,43/66,221/676
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 20/39,43/66,221/676, numerators are 20,43,221
Denominators are 39,66,676
The GCF of 20,43,221 is 1 .
LCM of 39,66,676 is 22308.
The greatest common factor of 20/39,43/66,221/676 = [GCF of 20,43,221]/[LCM of 39,66,676]= 1/22308
Therefore, the GCF of 20/39,43/66,221/676 is 1/22308.
To find the highest common factor of 20,43,221, we have to find the factors of both numbers and list the highest common factor.
The factors of 20 are 1, 2, 4, 5, 10, 20
The factors of 43 are 1, 43
The factors of 221 are 1, 13, 17, 221
The HCF of 20,43,221 is 1.
Lets's calculate GCF of 20,43,221
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 20,43,221 By Matching Biggest Common Factor Method
Now, list down the factors of 20
:1,2,4,5,10,20
Now, list down the factors of 43
:1,43
Now, list down the factors of 221
:1,13,17,221
Greatest Common Factor
We found the factors 20,43,221 . The biggest common factor number is the GCF number.
So the greatest common factor 20,43,221 is 1.
Lets's calculate LCM of 39,66,676
| 2 | 39, 66, 676 |
| 3 | 39, 33, 338 |
| 13 | 13, 11, 338 |
| 1, 11, 26 |
∴ So the LCM of the given numbers is 2 x 3 x 13 x 1 x 11 x 26 = 22308
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/22308
Therefore, the GCF of Fractions 20/39,43/66,221/676 is 1/22308
Least Common Multiple of 39,66,676 with GCF Formula
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 39,66,676 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(39,66,676) = 1
common factors(in case of two or more numbers have common factors) = 78
GCF(39,66,676) x common factors =1 x 78 = 78
LCM(39,66,676) = ( 39 × 66 × 676 ) / 78
LCM(39,66,676) = 1740024 / 78
LCM(39,66,676) = 22308
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FAQs on GCF of Fractions of 20/39, 43/66, 221/676
1. What is the HCF of 20,43,221?
The HCF of 20,43,221 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 20/39, 43/66, 221/676?
Answer: GCF of Numerators as per given numbers 20/39, 43/66, 221/676 is
GCF of Numerators i.e. for 20,43,221 is 1
LCM of denominators i.e. for 39,66,676 is 22308.
Thus, GCF of Fractions is 1/22308.Finally, GCF of Fractions for 20/39, 43/66, 221/676 is 1/22308.