Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 9/61,38/39,90/18,15/77
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 9,38,90,15
Greatest Common Factor of Numerators i.e. GCF of 9,38,90,15 is 1 .
LCM of Denominators means LCM of 61,39,18,77 as per the given fractions.
LCM of 61,39,18,77 is 1099098 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 9,38,90,15
∴ So GCF of numbers is 1 because of no common factors present between them.
Factors of 9
List of positive integer factors of 9 that divides 9 without a remainder.
1,3,9
Factors of 38
List of positive integer factors of 38 that divides 38 without a remainder.
1,2,19,38
Factors of 90
List of positive integer factors of 90 that divides 90 without a remainder.
1,2,3,5,6,9,10,15,18,30,45,90
Factors of 15
List of positive integer factors of 15 that divides 15 without a remainder.
1,3,5,15
Greatest Common Factor
We found the factors 9,38,90,15 . The biggest common factor number is the GCF number.
So the greatest common factor 9,38,90,15 is 1.
Lets's calculate LCM of 61,39,18,77
3 | 61, 39, 18, 77 |
61, 13, 6, 77 |
∴ So the LCM of the given numbers is 3 x 61 x 13 x 6 x 77 = 1099098
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/1099098
Therefore, the GCF of Fractions 9/61,38/39,90/18,15/77 is 1/1099098
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 61,39,18,77 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(61,39,18,77) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(61,39,18,77) x common factors =1 x 3 = 3
LCM(61,39,18,77) = ( 61 × 39 × 18 × 77 ) / 3
LCM(61,39,18,77) = 3297294 / 3
LCM(61,39,18,77) = 1099098
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 9/61, 38/39, 90/18, 15/77?
Answer: GCF of Numerators as per given numbers 9/61, 38/39, 90/18, 15/77 is
GCF of Numerators i.e. for 9,38,90,15 is 1
LCM of denominators i.e. for 61,39,18,77 is 1099098.
Thus, GCF of Fractions is 1/1099098.Finally, GCF of Fractions for 9/61, 38/39, 90/18, 15/77 is 1/1099098.