Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 644/38, 812/21, 346/54 quickly i.e. 3230948 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 644/38, 812/21, 346/54 is 3230948.
LCM(644/38, 812/21, 346/54) = 3230948
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 644/38,812/21,346/54
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 644,812,346
Least Common Multiple of Numerators i.e. LCM of 644,812,346 is 3230948.
GCF of Denominators means GCF of 38,21,54 as per the given fractions.
GCF of 38,21,54 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 644,812,346
2 | 644, 812, 346 |
2 | 322, 406, 173 |
7 | 161, 203, 173 |
23, 29, 173 |
∴ So the LCM of the given numbers is 2 x 2 x 7 x 23 x 29 x 173 = 3230948
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 644,812,346 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(644,812,346) = 2
common factors(in case of two or more numbers have common factors) = 28
GCF(644,812,346) x common factors =2 x 28 = 56
LCM(644,812,346) = ( 644 × 812 × 346 ) / 56
LCM(644,812,346) = 180933088 / 56
LCM(644,812,346) = 3230948
Lets's calculate GCF of 38,21,54
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 3230948/1
Therefore the LCM of Fractions 644/38,812/21,346/54 is 3230948
Factors of 38
List of positive integer factors of 38 that divides 38 without a remainder.
1,2,19,38
Factors of 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 54
List of positive integer factors of 54 that divides 54 without a remainder.
1,2,3,6,9,18,27,54
Greatest Common Factor
We found the factors 38,21,54 . The biggest common factor number is the GCF number.
So the greatest common factor 38,21,54 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 644/38, 812/21, 346/54?
Answer: LCM of Numerators as per given numbers 644/38, 812/21, 346/54 is
LCM of Numerators i.e. for 644,812,346 is 3230948
GCF of denominators i.e. for 38,21,54 is 1.
Thus, LCM of Fractions is 3230948.Finally, LCM of Fractions for 644/38, 812/21, 346/54 is 3230948.