Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 12/42, 60/39, 91/18, 39/224 quickly i.e. 5460 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 12/42, 60/39, 91/18, 39/224 is 5460.
LCM(12/42, 60/39, 91/18, 39/224) = 5460
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 12/42,60/39,91/18,39/224
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 12,60,91,39
Least Common Multiple of Numerators i.e. LCM of 12,60,91,39 is 5460.
GCF of Denominators means GCF of 42,39,18,224 as per the given fractions.
GCF of 42,39,18,224 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 12,60,91,39
2 | 12, 60, 91, 39 |
2 | 6, 30, 91, 39 |
3 | 3, 15, 91, 39 |
13 | 1, 5, 91, 13 |
1, 5, 7, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 13 x 1 x 5 x 7 x 1 = 5460
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 12,60,91,39 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(12,60,91,39) = 1
common factors(in case of two or more numbers have common factors) = 468
GCF(12,60,91,39) x common factors =1 x 468 = 468
LCM(12,60,91,39) = ( 12 × 60 × 91 × 39 ) / 468
LCM(12,60,91,39) = 2555280 / 468
LCM(12,60,91,39) = 5460
Lets's calculate GCF of 42,39,18,224
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 5460/1
Therefore the LCM of Fractions 12/42,60/39,91/18,39/224 is 5460
Factors of 42
List of positive integer factors of 42 that divides 42 without a remainder.
1,2,3,6,7,14,21,42
Factors of 39
List of positive integer factors of 39 that divides 39 without a remainder.
1,3,13,39
Factors of 18
List of positive integer factors of 18 that divides 18 without a remainder.
1,2,3,6,9,18
Factors of 224
List of positive integer factors of 224 that divides 224 without a remainder.
1,2,4,7,8,14,16,28,32,56,112,224
Greatest Common Factor
We found the factors 42,39,18,224 . The biggest common factor number is the GCF number.
So the greatest common factor 42,39,18,224 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 12/42, 60/39, 91/18, 39/224?
Answer: LCM of Numerators as per given numbers 12/42, 60/39, 91/18, 39/224 is
LCM of Numerators i.e. for 12,60,91,39 is 5460
GCF of denominators i.e. for 42,39,18,224 is 1.
Thus, LCM of Fractions is 5460.Finally, LCM of Fractions for 12/42, 60/39, 91/18, 39/224 is 5460.