Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 7/96, 79/15, 31/60, 42/81 quickly i.e. 34286 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 7/96, 79/15, 31/60, 42/81 is 34286.
LCM(7/96, 79/15, 31/60, 42/81) = 34286
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 7/96,79/15,31/60,42/81
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 7,79,31,42
Least Common Multiple of Numerators i.e. LCM of 7,79,31,42 is 102858.
GCF of Denominators means GCF of 96,15,60,81 as per the given fractions.
GCF of 96,15,60,81 is 3 as it is the largest common factor for these numbers.
Lets's calculate LCM of 7,79,31,42
7 | 7, 79, 31, 42 |
1, 79, 31, 6 |
∴ So the LCM of the given numbers is 7 x 1 x 79 x 31 x 6 = 102858
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 7,79,31,42 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(7,79,31,42) = 1
common factors(in case of two or more numbers have common factors) = 7
GCF(7,79,31,42) x common factors =1 x 7 = 7
LCM(7,79,31,42) = ( 7 × 79 × 31 × 42 ) / 7
LCM(7,79,31,42) = 720006 / 7
LCM(7,79,31,42) = 102858
Lets's calculate GCF of 96,15,60,81
3 | 96, 15, 60, 81 |
32, 5, 20, 27 |
∴ So the GCF of the given numbers is 3 = 3
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 102858/3
Therefore the LCM of Fractions 7/96,79/15,31/60,42/81 is 34286
Factors of 96
List of positive integer factors of 96 that divides 96 without a remainder.
1,2,3,4,6,8,12,16,24,32,48,96
Factors of 15
List of positive integer factors of 15 that divides 15 without a remainder.
1,3,5,15
Factors of 60
List of positive integer factors of 60 that divides 60 without a remainder.
1,2,3,4,5,6,10,12,15,20,30,60
Factors of 81
List of positive integer factors of 81 that divides 81 without a remainder.
1,3,9,27,81
Greatest Common Factor
We found the factors 96,15,60,81 . The biggest common factor number is the GCF number.
So the greatest common factor 96,15,60,81 is 3.
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 7/96, 79/15, 31/60, 42/81?
Answer: LCM of Numerators as per given numbers 7/96, 79/15, 31/60, 42/81 is
LCM of Numerators i.e. for 7,79,31,42 is 102858
GCF of denominators i.e. for 96,15,60,81 is 3.
Thus, LCM of Fractions is 34286.Finally, LCM of Fractions for 7/96, 79/15, 31/60, 42/81 is 34286.