Use our free GCF of Fractions Calculator tool to compute the GCF of 69/80, 387/43, 686/512 i.e 1/110080 easily. The following is the detailed procedure to determine the greatest common factor of fractions 69/80, 387/43, 686/512.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 69/80,387/43,686/512
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 69/80,387/43,686/512, numerators are 69,387,686
Denominators are 80,43,512
The GCF of 69,387,686 is 1 .
LCM of 80,43,512 is 110080.
The greatest common factor of 69/80,387/43,686/512 = [GCF of 69,387,686]/[LCM of 80,43,512]= 1/110080
Therefore, the GCF of 69/80,387/43,686/512 is 1/110080.
To find the highest common factor of 69,387,686, we have to find the factors of both numbers and list the highest common factor.
The factors of 69 are 1, 3, 23, 69
The factors of 387 are 1, 3, 9, 43, 129, 387
The factors of 686 are 1, 2, 7, 14, 49, 98, 343, 686
The HCF of 69,387,686 is 1.
Lets's calculate GCF of 69,387,686
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 69
:1,3,23,69
Now, list down the factors of 387
:1,3,9,43,129,387
Now, list down the factors of 686
:1,2,7,14,49,98,343,686
Greatest Common Factor
We found the factors 69,387,686 . The biggest common factor number is the GCF number.
So the greatest common factor 69,387,686 is 1.
Lets's calculate LCM of 80,43,512
2 | 80, 43, 512 |
2 | 40, 43, 256 |
2 | 20, 43, 128 |
2 | 10, 43, 64 |
5, 43, 32 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 2 x 5 x 43 x 32 = 110080
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/110080
Therefore, the GCF of Fractions 69/80,387/43,686/512 is 1/110080
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 80,43,512 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(80,43,512) = 1
common factors(in case of two or more numbers have common factors) = 16
GCF(80,43,512) x common factors =1 x 16 = 16
LCM(80,43,512) = ( 80 × 43 × 512 ) / 16
LCM(80,43,512) = 1761280 / 16
LCM(80,43,512) = 110080
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 69,387,686?
The HCF of 69,387,686 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 69/80, 387/43, 686/512?
Answer: GCF of Numerators as per given numbers 69/80, 387/43, 686/512 is
GCF of Numerators i.e. for 69,387,686 is 1
LCM of denominators i.e. for 80,43,512 is 110080.
Thus, GCF of Fractions is 1/110080.Finally, GCF of Fractions for 69/80, 387/43, 686/512 is 1/110080.