Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 98/85,90/78,78/84,49/650
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 98,90,78,49
Greatest Common Factor of Numerators i.e. GCF of 98,90,78,49 is 1 .
LCM of Denominators means LCM of 85,78,84,650 as per the given fractions.
LCM of 85,78,84,650 is 464100 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 98,90,78,49
∴ So GCF of numbers is 1 because of no common factors present between them.
Factors of 98
List of positive integer factors of 98 that divides 98 without a remainder.
1,2,7,14,49,98
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 78
List of positive integer factors of 78 that divides 78 without a remainder.
1,2,3,6,13,26,39,78
Factors of 49
List of positive integer factors of 49 that divides 49 without a remainder.
1,7,49
Greatest Common Factor
We found the factors 98,90,78,49 . The biggest common factor number is the GCF number.
So the greatest common factor 98,90,78,49 is 1.
Lets's calculate LCM of 85,78,84,650
2 | 85, 78, 84, 650 |
3 | 85, 39, 42, 325 |
5 | 85, 13, 14, 325 |
13 | 17, 13, 14, 65 |
17, 1, 14, 5 |
∴ So the LCM of the given numbers is 2 x 3 x 5 x 13 x 17 x 1 x 14 x 5 = 464100
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/464100
Therefore, the GCF of Fractions 98/85,90/78,78/84,49/650 is 1/464100
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 85,78,84,650 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(85,78,84,650) = 1
common factors(in case of two or more numbers have common factors) = 780
GCF(85,78,84,650) x common factors =1 x 780 = 780
LCM(85,78,84,650) = ( 85 × 78 × 84 × 650 ) / 780
LCM(85,78,84,650) = 361998000 / 780
LCM(85,78,84,650) = 464100
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 98/85, 90/78, 78/84, 49/650?
Answer: GCF of Numerators as per given numbers 98/85, 90/78, 78/84, 49/650 is
GCF of Numerators i.e. for 98,90,78,49 is 1
LCM of denominators i.e. for 85,78,84,650 is 464100.
Thus, GCF of Fractions is 1/464100.Finally, GCF of Fractions for 98/85, 90/78, 78/84, 49/650 is 1/464100.