Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 8/39, 21/28, 744/64 quickly i.e. 5208 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 8/39, 21/28, 744/64 is 5208.
LCM(8/39, 21/28, 744/64) = 5208
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 8/39,21/28,744/64
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 8,21,744
Least Common Multiple of Numerators i.e. LCM of 8,21,744 is 5208.
GCF of Denominators means GCF of 39,28,64 as per the given fractions.
GCF of 39,28,64 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 8,21,744
2 | 8, 21, 744 |
2 | 4, 21, 372 |
2 | 2, 21, 186 |
3 | 1, 21, 93 |
1, 7, 31 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 3 x 1 x 7 x 31 = 5208
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 8,21,744 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(8,21,744) = 1
common factors(in case of two or more numbers have common factors) = 24
GCF(8,21,744) x common factors =1 x 24 = 24
LCM(8,21,744) = ( 8 × 21 × 744 ) / 24
LCM(8,21,744) = 124992 / 24
LCM(8,21,744) = 5208
Lets's calculate GCF of 39,28,64
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 5208/1
Therefore the LCM of Fractions 8/39,21/28,744/64 is 5208
Factors of 39
List of positive integer factors of 39 that divides 39 without a remainder.
1,3,13,39
Factors of 28
List of positive integer factors of 28 that divides 28 without a remainder.
1,2,4,7,14,28
Factors of 64
List of positive integer factors of 64 that divides 64 without a remainder.
1,2,4,8,16,32,64
Greatest Common Factor
We found the factors 39,28,64 . The biggest common factor number is the GCF number.
So the greatest common factor 39,28,64 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 8/39, 21/28, 744/64?
Answer: LCM of Numerators as per given numbers 8/39, 21/28, 744/64 is
LCM of Numerators i.e. for 8,21,744 is 5208
GCF of denominators i.e. for 39,28,64 is 1.
Thus, LCM of Fractions is 5208.Finally, LCM of Fractions for 8/39, 21/28, 744/64 is 5208.