GCF of 207/428, 405/679
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 207/428, 405/679 i.e 9/290612 easily. The following is the detailed procedure to determine the greatest common factor of fractions 207/428, 405/679.
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 207/428,405/679?
Given fractions are 207/428,405/679
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 207/428,405/679, numerators are 207,405
Denominators are 428,679
The GCF of 207,405 is 9 .
LCM of 428,679 is 290612.
The greatest common factor of 207/428,405/679 = [GCF of 207,405]/[LCM of 428,679]= 9/290612
Therefore, the GCF of 207/428,405/679 is 9/290612.
To find the highest common factor of 207,405, we have to find the factors of both numbers and list the highest common factor.
The factors of 207 are 1, 3, 9, 23, 69, 207
The factors of 405 are 1, 3, 5, 9, 15, 27, 45, 81, 135, 405
The HCF of 207,405 is 9.
Lets's calculate GCF of 207,405
| 3 | 207, 405 |
| 3 | 69, 135 |
| 23, 45 |
∴ So the GCF of the given numbers is 3 x 3 = 9
Greatest Common Factor of 207,405 By Matching Biggest Common Factor Method
Now, list down the factors of 207
:1,3,9,23,69,207
Now, list down the factors of 405
:1,3,5,9,15,27,45,81,135,405
Greatest Common Factor
We found the factors 207,405 . The biggest common factor number is the GCF number.
So the greatest common factor 207,405 is 9.
Lets's calculate LCM of 428,679
Given numbers has no common factors except 1. So, there LCM is their product i.e 290612
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 9/290612
Therefore, the GCF of Fractions 207/428,405/679 is 9/290612
Least Common Multiple of 428,679 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 428,679 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(428,679) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(428,679) x common factors =1 x 1 = 1
LCM(428,679) = ( 428 × 679 ) / 1
LCM(428,679) = 290612 / 1
LCM(428,679) = 290612
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FAQs on GCF of Fractions of 207/428, 405/679
1. What is the HCF of 207,405?
The HCF of 207,405 is 9
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 207/428, 405/679?
Answer: GCF of Numerators as per given numbers 207/428, 405/679 is
GCF of Numerators i.e. for 207,405 is 9
LCM of denominators i.e. for 428,679 is 290612.
Thus, GCF of Fractions is 9/290612.Finally, GCF of Fractions for 207/428, 405/679 is 9/290612.