Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 780/210,3480/318
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 780,3480
Greatest Common Factor of Numerators i.e. GCF of 780,3480 is 60 .
LCM of Denominators means LCM of 210,318 as per the given fractions.
LCM of 210,318 is 11130 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 780,3480
2 | 780, 3480 |
2 | 390, 1740 |
3 | 195, 870 |
5 | 65, 290 |
13, 58 |
∴ So the GCF of the given numbers is 2 x 2 x 3 x 5 = 60
Factors of 780
List of positive integer factors of 780 that divides 780 without a remainder.
1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780
Factors of 3480
List of positive integer factors of 3480 that divides 3480 without a remainder.
1,2,3,4,5,6,8,10,12,15,20,24,29,30,40,58,60,87,116,120,145,174,232,290,348,435,580,696,870,1160,1740,3480
Greatest Common Factor
We found the factors 780,3480 . The biggest common factor number is the GCF number.
So the greatest common factor 780,3480 is 60.
Lets's calculate LCM of 210,318
2 | 210, 318 |
3 | 105, 159 |
35, 53 |
∴ So the LCM of the given numbers is 2 x 3 x 35 x 53 = 11130
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 60/11130
Therefore, the GCF of Fractions 780/210,3480/318 is 60/11130
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 210,318 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(210,318) = 6
common factors(in case of two or more numbers have common factors) = 1
GCF(210,318) x common factors =6 x 1 = 6
LCM(210,318) = ( 210 × 318 ) / 6
LCM(210,318) = 66780 / 6
LCM(210,318) = 11130
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 780/210, 3480/318?
Answer: GCF of Numerators as per given numbers 780/210, 3480/318 is
GCF of Numerators i.e. for 780,3480 is 60
LCM of denominators i.e. for 210,318 is 11130.
Thus, GCF of Fractions is 60/11130.Finally, GCF of Fractions for 780/210, 3480/318 is 60/11130.