Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 72/91,24/91,28/65,64/895
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 72,24,28,64
Greatest Common Factor of Numerators i.e. GCF of 72,24,28,64 is 4 .
LCM of Denominators means LCM of 91,91,65,895 as per the given fractions.
LCM of 91,91,65,895 is 81445 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 72,24,28,64
2 | 72, 24, 28, 64 |
2 | 36, 12, 14, 32 |
18, 6, 7, 16 |
∴ So the GCF of the given numbers is 2 x 2 = 4
Factors of 72
List of positive integer factors of 72 that divides 72 without a remainder.
1,2,3,4,6,8,9,12,18,24,36,72
Factors of 24
List of positive integer factors of 24 that divides 24 without a remainder.
1,2,3,4,6,8,12,24
Factors of 28
List of positive integer factors of 28 that divides 28 without a remainder.
1,2,4,7,14,28
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 72,24,28,64 . The biggest common factor number is the GCF number.
So the greatest common factor 72,24,28,64 is 4.
Lets's calculate LCM of 91,91,65,895
5 | 91, 91, 65, 895 |
7 | 91, 91, 13, 179 |
13 | 13, 13, 13, 179 |
1, 1, 1, 179 |
∴ So the LCM of the given numbers is 5 x 7 x 13 x 1 x 1 x 1 x 179 = 81445
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 4/81445
Therefore, the GCF of Fractions 72/91,24/91,28/65,64/895 is 4/81445
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 91,91,65,895 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(91,91,65,895) = 1
common factors(in case of two or more numbers have common factors) = 5915
GCF(91,91,65,895) x common factors =1 x 5915 = 5915
LCM(91,91,65,895) = ( 91 × 91 × 65 × 895 ) / 5915
LCM(91,91,65,895) = 481747175 / 5915
LCM(91,91,65,895) = 81445
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 72/91, 24/91, 28/65, 64/895?
Answer: GCF of Numerators as per given numbers 72/91, 24/91, 28/65, 64/895 is
GCF of Numerators i.e. for 72,24,28,64 is 4
LCM of denominators i.e. for 91,91,65,895 is 81445.
Thus, GCF of Fractions is 4/81445.Finally, GCF of Fractions for 72/91, 24/91, 28/65, 64/895 is 4/81445.