Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 91/72,90/54,30/90,880/48
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 91,90,30,880
Greatest Common Factor of Numerators i.e. GCF of 91,90,30,880 is 1 .
LCM of Denominators means LCM of 72,54,90,48 as per the given fractions.
LCM of 72,54,90,48 is 2160 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 91,90,30,880
∴ So GCF of numbers is 1 because of no common factors present between them.
Factors of 91
List of positive integer factors of 91 that divides 91 without a remainder.
1,7,13,91
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 30
List of positive integer factors of 30 that divides 30 without a remainder.
1,2,3,5,6,10,15,30
Factors of 880
List of positive integer factors of 880 that divides 880 without a remainder.
1,2,4,5,8,10,11,16,20,22,40,44,55,80,88,110,176,220,440,880
Greatest Common Factor
We found the factors 91,90,30,880 . The biggest common factor number is the GCF number.
So the greatest common factor 91,90,30,880 is 1.
Lets's calculate LCM of 72,54,90,48
2 | 72, 54, 90, 48 |
2 | 36, 27, 45, 24 |
2 | 18, 27, 45, 12 |
3 | 9, 27, 45, 6 |
3 | 3, 9, 15, 2 |
1, 3, 5, 2 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 3 x 3 x 1 x 3 x 5 x 2 = 2160
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/2160
Therefore, the GCF of Fractions 91/72,90/54,30/90,880/48 is 1/2160
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 72,54,90,48 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(72,54,90,48) = 6
common factors(in case of two or more numbers have common factors) = 1296
GCF(72,54,90,48) x common factors =6 x 1296 = 7776
LCM(72,54,90,48) = ( 72 × 54 × 90 × 48 ) / 7776
LCM(72,54,90,48) = 16796160 / 7776
LCM(72,54,90,48) = 2160
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 91/72, 90/54, 30/90, 880/48?
Answer: GCF of Numerators as per given numbers 91/72, 90/54, 30/90, 880/48 is
GCF of Numerators i.e. for 91,90,30,880 is 1
LCM of denominators i.e. for 72,54,90,48 is 2160.
Thus, GCF of Fractions is 1/2160.Finally, GCF of Fractions for 91/72, 90/54, 30/90, 880/48 is 1/2160.