Use our free GCF of Fractions Calculator tool to compute the GCF of 708/398, 156/978 i.e 12/194622 easily. The following is the detailed procedure to determine the greatest common factor of fractions 708/398, 156/978.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 708/398,156/978
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 708/398,156/978, numerators are 708,156
Denominators are 398,978
The GCF of 708,156 is 12 .
LCM of 398,978 is 194622.
The greatest common factor of 708/398,156/978 = [GCF of 708,156]/[LCM of 398,978]= 12/194622
Therefore, the GCF of 708/398,156/978 is 12/194622.
To find the highest common factor of 708,156, 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 156 are 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156
The HCF of 708,156 is 12.
Lets's calculate GCF of 708,156
2 | 708, 156 |
2 | 354, 78 |
3 | 177, 39 |
59, 13 |
∴ So the GCF of the given numbers is 2 x 2 x 3 = 12
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 156
:1,2,3,4,6,12,13,26,39,52,78,156
Greatest Common Factor
We found the factors 708,156 . The biggest common factor number is the GCF number.
So the greatest common factor 708,156 is 12.
Lets's calculate LCM of 398,978
2 | 398, 978 |
199, 489 |
∴ So the LCM of the given numbers is 2 x 199 x 489 = 194622
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 12/194622
Therefore, the GCF of Fractions 708/398,156/978 is 12/194622
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 398,978 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(398,978) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(398,978) x common factors =2 x 1 = 2
LCM(398,978) = ( 398 × 978 ) / 2
LCM(398,978) = 389244 / 2
LCM(398,978) = 194622
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 708,156?
The HCF of 708,156 is 12
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 708/398, 156/978?
Answer: GCF of Numerators as per given numbers 708/398, 156/978 is
GCF of Numerators i.e. for 708,156 is 12
LCM of denominators i.e. for 398,978 is 194622.
Thus, GCF of Fractions is 12/194622.Finally, GCF of Fractions for 708/398, 156/978 is 12/194622.