GCF of 640/87, 686/5915
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 640/87, 686/5915 i.e 2/514605 easily. The following is the detailed procedure to determine the greatest common factor of fractions 640/87, 686/5915.
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 640/87,686/5915?
Given fractions are 640/87,686/5915
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 640/87,686/5915, numerators are 640,686
Denominators are 87,5915
The GCF of 640,686 is 2 .
LCM of 87,5915 is 514605.
The greatest common factor of 640/87,686/5915 = [GCF of 640,686]/[LCM of 87,5915]= 2/514605
Therefore, the GCF of 640/87,686/5915 is 2/514605.
To find the highest common factor of 640,686, we have to find the factors of both numbers and list the highest common factor.
The factors of 640 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640
The factors of 686 are 1, 2, 7, 14, 49, 98, 343, 686
The HCF of 640,686 is 2.
Lets's calculate GCF of 640,686
| 2 | 640, 686 |
| 320, 343 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 640,686 By Matching Biggest Common Factor Method
Now, list down the factors of 640
:1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640
Now, list down the factors of 686
:1,2,7,14,49,98,343,686
Greatest Common Factor
We found the factors 640,686 . The biggest common factor number is the GCF number.
So the greatest common factor 640,686 is 2.
Lets's calculate LCM of 87,5915
Given numbers has no common factors except 1. So, there LCM is their product i.e 514605
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/514605
Therefore, the GCF of Fractions 640/87,686/5915 is 2/514605
Least Common Multiple of 87,5915 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 87,5915 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(87,5915) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(87,5915) x common factors =1 x 1 = 1
LCM(87,5915) = ( 87 × 5915 ) / 1
LCM(87,5915) = 514605 / 1
LCM(87,5915) = 514605
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FAQs on GCF of Fractions of 640/87, 686/5915
1. What is the HCF of 640,686?
The HCF of 640,686 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 640/87, 686/5915?
Answer: GCF of Numerators as per given numbers 640/87, 686/5915 is
GCF of Numerators i.e. for 640,686 is 2
LCM of denominators i.e. for 87,5915 is 514605.
Thus, GCF of Fractions is 2/514605.Finally, GCF of Fractions for 640/87, 686/5915 is 2/514605.