Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 15/29,30/28,90/970
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 15,30,90
Greatest Common Factor of Numerators i.e. GCF of 15,30,90 is 15 .
LCM of Denominators means LCM of 29,28,970 as per the given fractions.
LCM of 29,28,970 is 393820 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 15,30,90
3 | 15, 30, 90 |
5 | 5, 10, 30 |
1, 2, 6 |
∴ So the GCF of the given numbers is 3 x 5 = 15
Factors of 15
List of positive integer factors of 15 that divides 15 without a remainder.
1,3,5,15
Factors of 30
List of positive integer factors of 30 that divides 30 without a remainder.
1,2,3,5,6,10,15,30
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
Greatest Common Factor
We found the factors 15,30,90 . The biggest common factor number is the GCF number.
So the greatest common factor 15,30,90 is 15.
Lets's calculate LCM of 29,28,970
2 | 29, 28, 970 |
29, 14, 485 |
∴ So the LCM of the given numbers is 2 x 29 x 14 x 485 = 393820
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 15/393820
Therefore, the GCF of Fractions 15/29,30/28,90/970 is 15/393820
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 29,28,970 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(29,28,970) = 1
common factors(in case of two or more numbers have common factors) = 2
GCF(29,28,970) x common factors =1 x 2 = 2
LCM(29,28,970) = ( 29 × 28 × 970 ) / 2
LCM(29,28,970) = 787640 / 2
LCM(29,28,970) = 393820
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 15/29, 30/28, 90/970?
Answer: GCF of Numerators as per given numbers 15/29, 30/28, 90/970 is
GCF of Numerators i.e. for 15,30,90 is 15
LCM of denominators i.e. for 29,28,970 is 393820.
Thus, GCF of Fractions is 15/393820.Finally, GCF of Fractions for 15/29, 30/28, 90/970 is 15/393820.