Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 243/130,387/790
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 243,387
Greatest Common Factor of Numerators i.e. GCF of 243,387 is 9 .
LCM of Denominators means LCM of 130,790 as per the given fractions.
LCM of 130,790 is 10270 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 243,387
3 | 243, 387 |
3 | 81, 129 |
27, 43 |
∴ So the GCF of the given numbers is 3 x 3 = 9
Factors of 243
List of positive integer factors of 243 that divides 243 without a remainder.
1,3,9,27,81,243
Factors of 387
List of positive integer factors of 387 that divides 387 without a remainder.
1,3,9,43,129,387
Greatest Common Factor
We found the factors 243,387 . The biggest common factor number is the GCF number.
So the greatest common factor 243,387 is 9.
Lets's calculate LCM of 130,790
2 | 130, 790 |
5 | 65, 395 |
13, 79 |
∴ So the LCM of the given numbers is 2 x 5 x 13 x 79 = 10270
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 9/10270
Therefore, the GCF of Fractions 243/130,387/790 is 9/10270
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 130,790 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(130,790) = 10
common factors(in case of two or more numbers have common factors) = 1
GCF(130,790) x common factors =10 x 1 = 10
LCM(130,790) = ( 130 × 790 ) / 10
LCM(130,790) = 102700 / 10
LCM(130,790) = 10270
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 243/130, 387/790?
Answer: GCF of Numerators as per given numbers 243/130, 387/790 is
GCF of Numerators i.e. for 243,387 is 9
LCM of denominators i.e. for 130,790 is 10270.
Thus, GCF of Fractions is 9/10270.Finally, GCF of Fractions for 243/130, 387/790 is 9/10270.