Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 642/711,428/798
Formula to find GCF of Fractions is
GCF = GCF of Numerators/LCM of Denominators
As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators
In the given fractions GCF of Numerators means GCF of 642,428
Greatest Common Factor of Numerators i.e. GCF of 642,428 is 214 .
LCM of Denominators means LCM of 711,798 as per the given fractions.
LCM of 711,798 is 189126 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 642,428
2 | 642, 428 |
107 | 321, 214 |
3, 2 |
∴ So the GCF of the given numbers is 2 x 107 = 214
Factors of 642
List of positive integer factors of 642 that divides 642 without a remainder.
1,2,3,6,107,214,321,642
Factors of 428
List of positive integer factors of 428 that divides 428 without a remainder.
1,2,4,107,214,428
Greatest Common Factor
We found the factors 642,428 . The biggest common factor number is the GCF number.
So the greatest common factor 642,428 is 214.
Lets's calculate LCM of 711,798
3 | 711, 798 |
237, 266 |
∴ So the LCM of the given numbers is 3 x 237 x 266 = 189126
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 214/189126
Therefore, the GCF of Fractions 642/711,428/798 is 214/189126
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 711,798 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(711,798) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(711,798) x common factors =3 x 1 = 3
LCM(711,798) = ( 711 × 798 ) / 3
LCM(711,798) = 567378 / 3
LCM(711,798) = 189126
Here are some samples of GCF of Fractions calculations.
Here are some samples of GCF of Fractions calculations.
1. 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.
2. What is the GCF of Fractions for 642/711, 428/798?
Answer: GCF of Numerators as per given numbers 642/711, 428/798 is
GCF of Numerators i.e. for 642,428 is 214
LCM of denominators i.e. for 711,798 is 189126.
Thus, GCF of Fractions is 214/189126.Finally, GCF of Fractions for 642/711, 428/798 is 214/189126.