Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 8/47,78/86,32/64,64/92
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 8,78,32,64
Greatest Common Factor of Numerators i.e. GCF of 8,78,32,64 is 2 .
LCM of Denominators means LCM of 47,86,64,92 as per the given fractions.
LCM of 47,86,64,92 is 2974912 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 8,78,32,64
2 | 8, 78, 32, 64 |
4, 39, 16, 32 |
∴ So the GCF of the given numbers is 2 = 2
Factors of 8
List of positive integer factors of 8 that divides 8 without a remainder.
1,2,4,8
Factors of 78
List of positive integer factors of 78 that divides 78 without a remainder.
1,2,3,6,13,26,39,78
Factors of 32
List of positive integer factors of 32 that divides 32 without a remainder.
1,2,4,8,16,32
Factors of 64
List of positive integer factors of 64 that divides 64 without a remainder.
1,2,4,8,16,32,64
Greatest Common Factor
We found the factors 8,78,32,64 . The biggest common factor number is the GCF number.
So the greatest common factor 8,78,32,64 is 2.
Lets's calculate LCM of 47,86,64,92
2 | 47, 86, 64, 92 |
2 | 47, 43, 32, 46 |
47, 43, 16, 23 |
∴ So the LCM of the given numbers is 2 x 2 x 47 x 43 x 16 x 23 = 2974912
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/2974912
Therefore, the GCF of Fractions 8/47,78/86,32/64,64/92 is 2/2974912
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 47,86,64,92 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(47,86,64,92) = 1
common factors(in case of two or more numbers have common factors) = 8
GCF(47,86,64,92) x common factors =1 x 8 = 8
LCM(47,86,64,92) = ( 47 × 86 × 64 × 92 ) / 8
LCM(47,86,64,92) = 23799296 / 8
LCM(47,86,64,92) = 2974912
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 8/47, 78/86, 32/64, 64/92?
Answer: GCF of Numerators as per given numbers 8/47, 78/86, 32/64, 64/92 is
GCF of Numerators i.e. for 8,78,32,64 is 2
LCM of denominators i.e. for 47,86,64,92 is 2974912.
Thus, GCF of Fractions is 2/2974912.Finally, GCF of Fractions for 8/47, 78/86, 32/64, 64/92 is 2/2974912.