Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 53/38, 56/12, 72/89, 21/291 quickly i.e. 26712 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 53/38, 56/12, 72/89, 21/291 is 26712.
LCM(53/38, 56/12, 72/89, 21/291) = 26712
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 53/38,56/12,72/89,21/291
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 53,56,72,21
Least Common Multiple of Numerators i.e. LCM of 53,56,72,21 is 26712.
GCF of Denominators means GCF of 38,12,89,291 as per the given fractions.
GCF of 38,12,89,291 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 53,56,72,21
2 | 53, 56, 72, 21 |
2 | 53, 28, 36, 21 |
2 | 53, 14, 18, 21 |
3 | 53, 7, 9, 21 |
7 | 53, 7, 3, 7 |
53, 1, 3, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 3 x 7 x 53 x 1 x 3 x 1 = 26712
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 53,56,72,21 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(53,56,72,21) = 1
common factors(in case of two or more numbers have common factors) = 168
GCF(53,56,72,21) x common factors =1 x 168 = 168
LCM(53,56,72,21) = ( 53 × 56 × 72 × 21 ) / 168
LCM(53,56,72,21) = 4487616 / 168
LCM(53,56,72,21) = 26712
Lets's calculate GCF of 38,12,89,291
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 26712/1
Therefore the LCM of Fractions 53/38,56/12,72/89,21/291 is 26712
Factors of 38
List of positive integer factors of 38 that divides 38 without a remainder.
1,2,19,38
Factors of 12
List of positive integer factors of 12 that divides 12 without a remainder.
1,2,3,4,6,12
Factors of 89
List of positive integer factors of 89 that divides 89 without a remainder.
1,89
Factors of 291
List of positive integer factors of 291 that divides 291 without a remainder.
1,3,97,291
Greatest Common Factor
We found the factors 38,12,89,291 . The biggest common factor number is the GCF number.
So the greatest common factor 38,12,89,291 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 53/38, 56/12, 72/89, 21/291?
Answer: LCM of Numerators as per given numbers 53/38, 56/12, 72/89, 21/291 is
LCM of Numerators i.e. for 53,56,72,21 is 26712
GCF of denominators i.e. for 38,12,89,291 is 1.
Thus, LCM of Fractions is 26712.Finally, LCM of Fractions for 53/38, 56/12, 72/89, 21/291 is 26712.