GCF of 25/62, 81/61, 82/30, 78/646
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 25/62, 81/61, 82/30, 78/646 i.e 1/18323790 easily. The following is the detailed procedure to determine the greatest common factor of fractions 25/62, 81/61, 82/30, 78/646.
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 25/62,81/61,82/30,78/646?
Given fractions are 25/62,81/61,82/30,78/646
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 25/62,81/61,82/30,78/646, numerators are 25,81,82,78
Denominators are 62,61,30,646
The GCF of 25,81,82,78 is 1 .
LCM of 62,61,30,646 is 18323790.
The greatest common factor of 25/62,81/61,82/30,78/646 = [GCF of 25,81,82,78]/[LCM of 62,61,30,646]= 1/18323790
Therefore, the GCF of 25/62,81/61,82/30,78/646 is 1/18323790.
To find the highest common factor of 25,81,82,78, 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 81 are 1, 3, 9, 27, 81
The factors of 82 are 1, 2, 41, 82
The factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78
The HCF of 25,81,82,78 is 1.
Lets's calculate GCF of 25,81,82,78
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 25,81,82,78 By Matching Biggest Common Factor Method
Now, list down the factors of 25
:1,5,25
Now, list down the factors of 81
:1,3,9,27,81
Now, list down the factors of 82
:1,2,41,82
Now, list down the factors of 78
:1,2,3,6,13,26,39,78
Greatest Common Factor
We found the factors 25,81,82,78 . The biggest common factor number is the GCF number.
So the greatest common factor 25,81,82,78 is 1.
Lets's calculate LCM of 62,61,30,646
| 2 | 62, 61, 30, 646 |
| 31, 61, 15, 323 |
∴ So the LCM of the given numbers is 2 x 31 x 61 x 15 x 323 = 18323790
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/18323790
Therefore, the GCF of Fractions 25/62,81/61,82/30,78/646 is 1/18323790
Least Common Multiple of 62,61,30,646 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 62,61,30,646 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(62,61,30,646) = 1
common factors(in case of two or more numbers have common factors) = 4
GCF(62,61,30,646) x common factors =1 x 4 = 4
LCM(62,61,30,646) = ( 62 × 61 × 30 × 646 ) / 4
LCM(62,61,30,646) = 73295160 / 4
LCM(62,61,30,646) = 18323790
GCF of Fractions Calculation Examples
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FAQs on GCF of Fractions of 25/62, 81/61, 82/30, 78/646
1. What is the HCF of 25,81,82,78?
The HCF of 25,81,82,78 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 25/62, 81/61, 82/30, 78/646?
Answer: GCF of Numerators as per given numbers 25/62, 81/61, 82/30, 78/646 is
GCF of Numerators i.e. for 25,81,82,78 is 1
LCM of denominators i.e. for 62,61,30,646 is 18323790.
Thus, GCF of Fractions is 1/18323790.Finally, GCF of Fractions for 25/62, 81/61, 82/30, 78/646 is 1/18323790.