Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 840/67,660/1551
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 840,660
Greatest Common Factor of Numerators i.e. GCF of 840,660 is 60 .
LCM of Denominators means LCM of 67,1551 as per the given fractions.
LCM of 67,1551 is 103917 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 840,660
2 | 840, 660 |
2 | 420, 330 |
3 | 210, 165 |
5 | 70, 55 |
14, 11 |
∴ So the GCF of the given numbers is 2 x 2 x 3 x 5 = 60
Factors of 840
List of positive integer factors of 840 that divides 840 without a remainder.
1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840
Factors of 660
List of positive integer factors of 660 that divides 660 without a remainder.
1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660
Greatest Common Factor
We found the factors 840,660 . The biggest common factor number is the GCF number.
So the greatest common factor 840,660 is 60.
Lets's calculate LCM of 67,1551
Given numbers has no common factors except 1. So, there LCM is their product i.e 103917
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 60/103917
Therefore, the GCF of Fractions 840/67,660/1551 is 60/103917
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 67,1551 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(67,1551) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(67,1551) x common factors =1 x 1 = 1
LCM(67,1551) = ( 67 × 1551 ) / 1
LCM(67,1551) = 103917 / 1
LCM(67,1551) = 103917
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 840/67, 660/1551?
Answer: GCF of Numerators as per given numbers 840/67, 660/1551 is
GCF of Numerators i.e. for 840,660 is 60
LCM of denominators i.e. for 67,1551 is 103917.
Thus, GCF of Fractions is 60/103917.Finally, GCF of Fractions for 840/67, 660/1551 is 60/103917.