Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 35/81,20/98,65/32,50/78
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 35,20,65,50
Greatest Common Factor of Numerators i.e. GCF of 35,20,65,50 is 5 .
LCM of Denominators means LCM of 81,98,32,78 as per the given fractions.
LCM of 81,98,32,78 is 1651104 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 35,20,65,50
5 | 35, 20, 65, 50 |
7, 4, 13, 10 |
∴ So the GCF of the given numbers is 5 = 5
Factors of 35
List of positive integer factors of 35 that divides 35 without a remainder.
1,5,7,35
Factors of 20
List of positive integer factors of 20 that divides 20 without a remainder.
1,2,4,5,10,20
Factors of 65
List of positive integer factors of 65 that divides 65 without a remainder.
1,5,13,65
Factors of 50
List of positive integer factors of 50 that divides 50 without a remainder.
1,2,5,10,25,50
Greatest Common Factor
We found the factors 35,20,65,50 . The biggest common factor number is the GCF number.
So the greatest common factor 35,20,65,50 is 5.
Lets's calculate LCM of 81,98,32,78
2 | 81, 98, 32, 78 |
3 | 81, 49, 16, 39 |
27, 49, 16, 13 |
∴ So the LCM of the given numbers is 2 x 3 x 27 x 49 x 16 x 13 = 1651104
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/1651104
Therefore, the GCF of Fractions 35/81,20/98,65/32,50/78 is 5/1651104
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 81,98,32,78 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,98,32,78) = 1
common factors(in case of two or more numbers have common factors) = 12
GCF(81,98,32,78) x common factors =1 x 12 = 12
LCM(81,98,32,78) = ( 81 × 98 × 32 × 78 ) / 12
LCM(81,98,32,78) = 19813248 / 12
LCM(81,98,32,78) = 1651104
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 35/81, 20/98, 65/32, 50/78?
Answer: GCF of Numerators as per given numbers 35/81, 20/98, 65/32, 50/78 is
GCF of Numerators i.e. for 35,20,65,50 is 5
LCM of denominators i.e. for 81,98,32,78 is 1651104.
Thus, GCF of Fractions is 5/1651104.Finally, GCF of Fractions for 35/81, 20/98, 65/32, 50/78 is 5/1651104.