Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 31/20,647/15,781/62
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 31,647,781
Greatest Common Factor of Numerators i.e. GCF of 31,647,781 is 1 .
LCM of Denominators means LCM of 20,15,62 as per the given fractions.
LCM of 20,15,62 is 1860 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 31,647,781
∴ So GCF of numbers is 1 because of no common factors present between them.
Factors of 31
List of positive integer factors of 31 that divides 31 without a remainder.
1,31
Factors of 647
List of positive integer factors of 647 that divides 647 without a remainder.
1,647
Factors of 781
List of positive integer factors of 781 that divides 781 without a remainder.
1,11,71,781
Greatest Common Factor
We found the factors 31,647,781 . The biggest common factor number is the GCF number.
So the greatest common factor 31,647,781 is 1.
Lets's calculate LCM of 20,15,62
2 | 20, 15, 62 |
5 | 10, 15, 31 |
2, 3, 31 |
∴ So the LCM of the given numbers is 2 x 5 x 2 x 3 x 31 = 1860
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/1860
Therefore, the GCF of Fractions 31/20,647/15,781/62 is 1/1860
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 20,15,62 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(20,15,62) = 1
common factors(in case of two or more numbers have common factors) = 10
GCF(20,15,62) x common factors =1 x 10 = 10
LCM(20,15,62) = ( 20 × 15 × 62 ) / 10
LCM(20,15,62) = 18600 / 10
LCM(20,15,62) = 1860
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 31/20, 647/15, 781/62?
Answer: GCF of Numerators as per given numbers 31/20, 647/15, 781/62 is
GCF of Numerators i.e. for 31,647,781 is 1
LCM of denominators i.e. for 20,15,62 is 1860.
Thus, GCF of Fractions is 1/1860.Finally, GCF of Fractions for 31/20, 647/15, 781/62 is 1/1860.