Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 81/31, 96/288, 642/469 quickly i.e. 277344 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 81/31, 96/288, 642/469 is 277344.
LCM(81/31, 96/288, 642/469) = 277344
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 81/31,96/288,642/469
Formula to find LCM of Fractions is
LCM = LCM of Numerators/GCF of Denominators
As per the formula LCM of Fractions let’s split into two parts and find the LCM of Numerators and GCF of Denominators
In the given fractions LCM of Numerators means LCM of 81,96,642
Least Common Multiple of Numerators i.e. LCM of 81,96,642 is 277344.
GCF of Denominators means GCF of 31,288,469 as per the given fractions.
GCF of 31,288,469 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 81,96,642
2 | 81, 96, 642 |
3 | 81, 48, 321 |
27, 16, 107 |
∴ So the LCM of the given numbers is 2 x 3 x 27 x 16 x 107 = 277344
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 81,96,642 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,96,642) = 3
common factors(in case of two or more numbers have common factors) = 6
GCF(81,96,642) x common factors =3 x 6 = 18
LCM(81,96,642) = ( 81 × 96 × 642 ) / 18
LCM(81,96,642) = 4992192 / 18
LCM(81,96,642) = 277344
Lets's calculate GCF of 31,288,469
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 277344/1
Therefore the LCM of Fractions 81/31,96/288,642/469 is 277344
Factors of 31
List of positive integer factors of 31 that divides 31 without a remainder.
1,31
Factors of 288
List of positive integer factors of 288 that divides 288 without a remainder.
1,2,3,4,6,8,9,12,16,18,24,32,36,48,72,96,144,288
Factors of 469
List of positive integer factors of 469 that divides 469 without a remainder.
1,7,67,469
Greatest Common Factor
We found the factors 31,288,469 . The biggest common factor number is the GCF number.
So the greatest common factor 31,288,469 is 1.
Here are some samples of LCM of Fractions calculations.
Here are some samples of LCM of Fractions calculations.
1. How to find LCM in Fractions?
Answer: LCM of fractions can be found using the simple formula LCM of Fractions = LCM of Numerators/GCF of Denominators.
2. What is the LCM of Fractions for 81/31, 96/288, 642/469?
Answer: LCM of Numerators as per given numbers 81/31, 96/288, 642/469 is
LCM of Numerators i.e. for 81,96,642 is 277344
GCF of denominators i.e. for 31,288,469 is 1.
Thus, LCM of Fractions is 277344.Finally, LCM of Fractions for 81/31, 96/288, 642/469 is 277344.