Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 12/65, 11/89, 20/493 quickly i.e. 660 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 12/65, 11/89, 20/493 is 660.
LCM(12/65, 11/89, 20/493) = 660
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 12/65,11/89,20/493
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 12,11,20
Least Common Multiple of Numerators i.e. LCM of 12,11,20 is 660.
GCF of Denominators means GCF of 65,89,493 as per the given fractions.
GCF of 65,89,493 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 12,11,20
2 | 12, 11, 20 |
2 | 6, 11, 10 |
3, 11, 5 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 11 x 5 = 660
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 12,11,20 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(12,11,20) = 1
common factors(in case of two or more numbers have common factors) = 4
GCF(12,11,20) x common factors =1 x 4 = 4
LCM(12,11,20) = ( 12 × 11 × 20 ) / 4
LCM(12,11,20) = 2640 / 4
LCM(12,11,20) = 660
Lets's calculate GCF of 65,89,493
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 660/1
Therefore the LCM of Fractions 12/65,11/89,20/493 is 660
Factors of 65
List of positive integer factors of 65 that divides 65 without a remainder.
1,5,13,65
Factors of 89
List of positive integer factors of 89 that divides 89 without a remainder.
1,89
Factors of 493
List of positive integer factors of 493 that divides 493 without a remainder.
1,17,29,493
Greatest Common Factor
We found the factors 65,89,493 . The biggest common factor number is the GCF number.
So the greatest common factor 65,89,493 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 12/65, 11/89, 20/493?
Answer: LCM of Numerators as per given numbers 12/65, 11/89, 20/493 is
LCM of Numerators i.e. for 12,11,20 is 660
GCF of denominators i.e. for 65,89,493 is 1.
Thus, LCM of Fractions is 660.Finally, LCM of Fractions for 12/65, 11/89, 20/493 is 660.