Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 3/20, 4/16, 64/12, 54/647 quickly i.e. 1728 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 3/20, 4/16, 64/12, 54/647 is 1728.
LCM(3/20, 4/16, 64/12, 54/647) = 1728
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 3/20,4/16,64/12,54/647
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 3,4,64,54
Least Common Multiple of Numerators i.e. LCM of 3,4,64,54 is 1728.
GCF of Denominators means GCF of 20,16,12,647 as per the given fractions.
GCF of 20,16,12,647 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 3,4,64,54
2 | 3, 4, 64, 54 |
2 | 3, 2, 32, 27 |
3 | 3, 1, 16, 27 |
1, 1, 16, 9 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 1 x 1 x 16 x 9 = 1728
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 3,4,64,54 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(3,4,64,54) = 1
common factors(in case of two or more numbers have common factors) = 24
GCF(3,4,64,54) x common factors =1 x 24 = 24
LCM(3,4,64,54) = ( 3 × 4 × 64 × 54 ) / 24
LCM(3,4,64,54) = 41472 / 24
LCM(3,4,64,54) = 1728
Lets's calculate GCF of 20,16,12,647
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1728/1
Therefore the LCM of Fractions 3/20,4/16,64/12,54/647 is 1728
Factors of 20
List of positive integer factors of 20 that divides 20 without a remainder.
1,2,4,5,10,20
Factors of 16
List of positive integer factors of 16 that divides 16 without a remainder.
1,2,4,8,16
Factors of 12
List of positive integer factors of 12 that divides 12 without a remainder.
1,2,3,4,6,12
Factors of 647
List of positive integer factors of 647 that divides 647 without a remainder.
1,647
Greatest Common Factor
We found the factors 20,16,12,647 . The biggest common factor number is the GCF number.
So the greatest common factor 20,16,12,647 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 3/20, 4/16, 64/12, 54/647?
Answer: LCM of Numerators as per given numbers 3/20, 4/16, 64/12, 54/647 is
LCM of Numerators i.e. for 3,4,64,54 is 1728
GCF of denominators i.e. for 20,16,12,647 is 1.
Thus, LCM of Fractions is 1728.Finally, LCM of Fractions for 3/20, 4/16, 64/12, 54/647 is 1728.