Use our free GCF of Fractions Calculator tool to compute the GCF of 684/696, 645/315 i.e 3/73080 easily. The following is the detailed procedure to determine the greatest common factor of fractions 684/696, 645/315.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 684/696,645/315
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 684/696,645/315, numerators are 684,645
Denominators are 696,315
The GCF of 684,645 is 3 .
LCM of 696,315 is 73080.
The greatest common factor of 684/696,645/315 = [GCF of 684,645]/[LCM of 696,315]= 3/73080
Therefore, the GCF of 684/696,645/315 is 3/73080.
To find the highest common factor of 684,645, we have to find the factors of both numbers and list the highest common factor.
The factors of 684 are 1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 114, 171, 228, 342, 684
The factors of 645 are 1, 3, 5, 15, 43, 129, 215, 645
The HCF of 684,645 is 3.
Lets's calculate GCF of 684,645
3 | 684, 645 |
228, 215 |
∴ So the GCF of the given numbers is 3 = 3
Now, list down the factors of 684
:1,2,3,4,6,9,12,18,19,36,38,57,76,114,171,228,342,684
Now, list down the factors of 645
:1,3,5,15,43,129,215,645
Greatest Common Factor
We found the factors 684,645 . The biggest common factor number is the GCF number.
So the greatest common factor 684,645 is 3.
Lets's calculate LCM of 696,315
3 | 696, 315 |
232, 105 |
∴ So the LCM of the given numbers is 3 x 232 x 105 = 73080
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/73080
Therefore, the GCF of Fractions 684/696,645/315 is 3/73080
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 696,315 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(696,315) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(696,315) x common factors =3 x 1 = 3
LCM(696,315) = ( 696 × 315 ) / 3
LCM(696,315) = 219240 / 3
LCM(696,315) = 73080
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 684,645?
The HCF of 684,645 is 3
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 684/696, 645/315?
Answer: GCF of Numerators as per given numbers 684/696, 645/315 is
GCF of Numerators i.e. for 684,645 is 3
LCM of denominators i.e. for 696,315 is 73080.
Thus, GCF of Fractions is 3/73080.Finally, GCF of Fractions for 684/696, 645/315 is 3/73080.