Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 2/81,20/19,10/40,18/49
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 2,20,10,18
Greatest Common Factor of Numerators i.e. GCF of 2,20,10,18 is 2 .
LCM of Denominators means LCM of 81,19,40,49 as per the given fractions.
LCM of 81,19,40,49 is 3016440 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 2,20,10,18
2 | 2, 20, 10, 18 |
1, 10, 5, 9 |
∴ So the GCF of the given numbers is 2 = 2
Factors of 2
List of positive integer factors of 2 that divides 2 without a remainder.
1,2
Factors of 20
List of positive integer factors of 20 that divides 20 without a remainder.
1,2,4,5,10,20
Factors of 10
List of positive integer factors of 10 that divides 10 without a remainder.
1,2,5,10
Factors of 18
List of positive integer factors of 18 that divides 18 without a remainder.
1,2,3,6,9,18
Greatest Common Factor
We found the factors 2,20,10,18 . The biggest common factor number is the GCF number.
So the greatest common factor 2,20,10,18 is 2.
Lets's calculate LCM of 81,19,40,49
Given numbers has no common factors except 1. So, there LCM is their product i.e 3016440
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/3016440
Therefore, the GCF of Fractions 2/81,20/19,10/40,18/49 is 2/3016440
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 81,19,40,49 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,19,40,49) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(81,19,40,49) x common factors =1 x 1 = 1
LCM(81,19,40,49) = ( 81 × 19 × 40 × 49 ) / 1
LCM(81,19,40,49) = 3016440 / 1
LCM(81,19,40,49) = 3016440
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 2/81, 20/19, 10/40, 18/49?
Answer: GCF of Numerators as per given numbers 2/81, 20/19, 10/40, 18/49 is
GCF of Numerators i.e. for 2,20,10,18 is 2
LCM of denominators i.e. for 81,19,40,49 is 3016440.
Thus, GCF of Fractions is 2/3016440.Finally, GCF of Fractions for 2/81, 20/19, 10/40, 18/49 is 2/3016440.