Use our free GCF of Fractions Calculator tool to compute the GCF of 789/560, 8215/840 i.e 1/1680 easily. The following is the detailed procedure to determine the greatest common factor of fractions 789/560, 8215/840.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 789/560,8215/840
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 789/560,8215/840, numerators are 789,8215
Denominators are 560,840
The GCF of 789,8215 is 1 .
LCM of 560,840 is 1680.
The greatest common factor of 789/560,8215/840 = [GCF of 789,8215]/[LCM of 560,840]= 1/1680
Therefore, the GCF of 789/560,8215/840 is 1/1680.
To find the highest common factor of 789,8215, we have to find the factors of both numbers and list the highest common factor.
The factors of 789 are 1, 3, 263, 789
The factors of 8215 are 1, 5, 31, 53, 155, 265, 1643, 8215
The HCF of 789,8215 is 1.
Lets's calculate GCF of 789,8215
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 789
:1,3,263,789
Now, list down the factors of 8215
:1,5,31,53,155,265,1643,8215
Greatest Common Factor
We found the factors 789,8215 . The biggest common factor number is the GCF number.
So the greatest common factor 789,8215 is 1.
Lets's calculate LCM of 560,840
2 | 560, 840 |
2 | 280, 420 |
2 | 140, 210 |
5 | 70, 105 |
7 | 14, 21 |
2, 3 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 5 x 7 x 2 x 3 = 1680
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/1680
Therefore, the GCF of Fractions 789/560,8215/840 is 1/1680
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 560,840 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(560,840) = 280
common factors(in case of two or more numbers have common factors) = 1
GCF(560,840) x common factors =280 x 1 = 280
LCM(560,840) = ( 560 × 840 ) / 280
LCM(560,840) = 470400 / 280
LCM(560,840) = 1680
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 789,8215?
The HCF of 789,8215 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 789/560, 8215/840?
Answer: GCF of Numerators as per given numbers 789/560, 8215/840 is
GCF of Numerators i.e. for 789,8215 is 1
LCM of denominators i.e. for 560,840 is 1680.
Thus, GCF of Fractions is 1/1680.Finally, GCF of Fractions for 789/560, 8215/840 is 1/1680.