Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 81/68, 11/75, 88/21, 36/944 quickly i.e. 7128 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 81/68, 11/75, 88/21, 36/944 is 7128.
LCM(81/68, 11/75, 88/21, 36/944) = 7128
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 81/68,11/75,88/21,36/944
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 81,11,88,36
Least Common Multiple of Numerators i.e. LCM of 81,11,88,36 is 7128.
GCF of Denominators means GCF of 68,75,21,944 as per the given fractions.
GCF of 68,75,21,944 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 81,11,88,36
2 | 81, 11, 88, 36 |
2 | 81, 11, 44, 18 |
3 | 81, 11, 22, 9 |
3 | 27, 11, 22, 3 |
11 | 9, 11, 22, 1 |
9, 1, 2, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 3 x 11 x 9 x 1 x 2 x 1 = 7128
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 81,11,88,36 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,11,88,36) = 1
common factors(in case of two or more numbers have common factors) = 396
GCF(81,11,88,36) x common factors =1 x 396 = 396
LCM(81,11,88,36) = ( 81 × 11 × 88 × 36 ) / 396
LCM(81,11,88,36) = 2822688 / 396
LCM(81,11,88,36) = 7128
Lets's calculate GCF of 68,75,21,944
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 7128/1
Therefore the LCM of Fractions 81/68,11/75,88/21,36/944 is 7128
Factors of 68
List of positive integer factors of 68 that divides 68 without a remainder.
1,2,4,17,34,68
Factors of 75
List of positive integer factors of 75 that divides 75 without a remainder.
1,3,5,15,25,75
Factors of 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 944
List of positive integer factors of 944 that divides 944 without a remainder.
1,2,4,8,16,59,118,236,472,944
Greatest Common Factor
We found the factors 68,75,21,944 . The biggest common factor number is the GCF number.
So the greatest common factor 68,75,21,944 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 81/68, 11/75, 88/21, 36/944?
Answer: LCM of Numerators as per given numbers 81/68, 11/75, 88/21, 36/944 is
LCM of Numerators i.e. for 81,11,88,36 is 7128
GCF of denominators i.e. for 68,75,21,944 is 1.
Thus, LCM of Fractions is 7128.Finally, LCM of Fractions for 81/68, 11/75, 88/21, 36/944 is 7128.