Use our free GCF of Fractions Calculator tool to compute the GCF of 708/985, 1293/405 i.e 3/79785 easily. The following is the detailed procedure to determine the greatest common factor of fractions 708/985, 1293/405.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 708/985,1293/405
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 708/985,1293/405, numerators are 708,1293
Denominators are 985,405
The GCF of 708,1293 is 3 .
LCM of 985,405 is 79785.
The greatest common factor of 708/985,1293/405 = [GCF of 708,1293]/[LCM of 985,405]= 3/79785
Therefore, the GCF of 708/985,1293/405 is 3/79785.
To find the highest common factor of 708,1293, we have to find the factors of both numbers and list the highest common factor.
The factors of 708 are 1, 2, 3, 4, 6, 12, 59, 118, 177, 236, 354, 708
The factors of 1293 are 1, 3, 431, 1293
The HCF of 708,1293 is 3.
Lets's calculate GCF of 708,1293
3 | 708, 1293 |
236, 431 |
∴ So the GCF of the given numbers is 3 = 3
Now, list down the factors of 708
:1,2,3,4,6,12,59,118,177,236,354,708
Now, list down the factors of 1293
:1,3,431,1293
Greatest Common Factor
We found the factors 708,1293 . The biggest common factor number is the GCF number.
So the greatest common factor 708,1293 is 3.
Lets's calculate LCM of 985,405
5 | 985, 405 |
197, 81 |
∴ So the LCM of the given numbers is 5 x 197 x 81 = 79785
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/79785
Therefore, the GCF of Fractions 708/985,1293/405 is 3/79785
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 985,405 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(985,405) = 5
common factors(in case of two or more numbers have common factors) = 1
GCF(985,405) x common factors =5 x 1 = 5
LCM(985,405) = ( 985 × 405 ) / 5
LCM(985,405) = 398925 / 5
LCM(985,405) = 79785
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 708,1293?
The HCF of 708,1293 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 708/985, 1293/405?
Answer: GCF of Numerators as per given numbers 708/985, 1293/405 is
GCF of Numerators i.e. for 708,1293 is 3
LCM of denominators i.e. for 985,405 is 79785.
Thus, GCF of Fractions is 3/79785.Finally, GCF of Fractions for 708/985, 1293/405 is 3/79785.