Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 66/40,97/40,72/34,28/91
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 66,97,72,28
Greatest Common Factor of Numerators i.e. GCF of 66,97,72,28 is 1 .
LCM of Denominators means LCM of 40,40,34,91 as per the given fractions.
LCM of 40,40,34,91 is 61880 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 66,97,72,28
∴ So GCF of numbers is 1 because of no common factors present between them.
Factors of 66
List of positive integer factors of 66 that divides 66 without a remainder.
1,2,3,6,11,22,33,66
Factors of 97
List of positive integer factors of 97 that divides 97 without a remainder.
1,97
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 28
List of positive integer factors of 28 that divides 28 without a remainder.
1,2,4,7,14,28
Greatest Common Factor
We found the factors 66,97,72,28 . The biggest common factor number is the GCF number.
So the greatest common factor 66,97,72,28 is 1.
Lets's calculate LCM of 40,40,34,91
2 | 40, 40, 34, 91 |
2 | 20, 20, 17, 91 |
2 | 10, 10, 17, 91 |
5 | 5, 5, 17, 91 |
1, 1, 17, 91 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 5 x 1 x 1 x 17 x 91 = 61880
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/61880
Therefore, the GCF of Fractions 66/40,97/40,72/34,28/91 is 1/61880
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 40,40,34,91 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(40,40,34,91) = 1
common factors(in case of two or more numbers have common factors) = 80
GCF(40,40,34,91) x common factors =1 x 80 = 80
LCM(40,40,34,91) = ( 40 × 40 × 34 × 91 ) / 80
LCM(40,40,34,91) = 4950400 / 80
LCM(40,40,34,91) = 61880
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 66/40, 97/40, 72/34, 28/91?
Answer: GCF of Numerators as per given numbers 66/40, 97/40, 72/34, 28/91 is
GCF of Numerators i.e. for 66,97,72,28 is 1
LCM of denominators i.e. for 40,40,34,91 is 61880.
Thus, GCF of Fractions is 1/61880.Finally, GCF of Fractions for 66/40, 97/40, 72/34, 28/91 is 1/61880.