Use our free GCF of Fractions Calculator tool to compute the GCF of 942/781, 390/571 i.e 6/445951 easily. The following is the detailed procedure to determine the greatest common factor of fractions 942/781, 390/571.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 942/781,390/571
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 942/781,390/571, numerators are 942,390
Denominators are 781,571
The GCF of 942,390 is 6 .
LCM of 781,571 is 445951.
The greatest common factor of 942/781,390/571 = [GCF of 942,390]/[LCM of 781,571]= 6/445951
Therefore, the GCF of 942/781,390/571 is 6/445951.
To find the highest common factor of 942,390, we have to find the factors of both numbers and list the highest common factor.
The factors of 942 are 1, 2, 3, 6, 157, 314, 471, 942
The factors of 390 are 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
The HCF of 942,390 is 6.
Lets's calculate GCF of 942,390
2 | 942, 390 |
3 | 471, 195 |
157, 65 |
∴ So the GCF of the given numbers is 2 x 3 = 6
Now, list down the factors of 942
:1,2,3,6,157,314,471,942
Now, list down the factors of 390
:1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390
Greatest Common Factor
We found the factors 942,390 . The biggest common factor number is the GCF number.
So the greatest common factor 942,390 is 6.
Lets's calculate LCM of 781,571
Given numbers has no common factors except 1. So, there LCM is their product i.e 445951
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 6/445951
Therefore, the GCF of Fractions 942/781,390/571 is 6/445951
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 781,571 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(781,571) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(781,571) x common factors =1 x 1 = 1
LCM(781,571) = ( 781 × 571 ) / 1
LCM(781,571) = 445951 / 1
LCM(781,571) = 445951
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 942,390?
The HCF of 942,390 is 6
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 942/781, 390/571?
Answer: GCF of Numerators as per given numbers 942/781, 390/571 is
GCF of Numerators i.e. for 942,390 is 6
LCM of denominators i.e. for 781,571 is 445951.
Thus, GCF of Fractions is 6/445951.Finally, GCF of Fractions for 942/781, 390/571 is 6/445951.