Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 18/972, 38/945 quickly i.e. 342/27 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 18/972, 38/945 is 342/27.
LCM(18/972, 38/945) = 342/27
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 18/972,38/945
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 18,38
Least Common Multiple of Numerators i.e. LCM of 18,38 is 342.
GCF of Denominators means GCF of 972,945 as per the given fractions.
GCF of 972,945 is 27 as it is the largest common factor for these numbers.
Lets's calculate LCM of 18,38
2 | 18, 38 |
9, 19 |
∴ So the LCM of the given numbers is 2 x 9 x 19 = 342
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 18,38 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(18,38) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(18,38) x common factors =2 x 1 = 2
LCM(18,38) = ( 18 × 38 ) / 2
LCM(18,38) = 684 / 2
LCM(18,38) = 342
Lets's calculate GCF of 972,945
3 | 972, 945 |
3 | 324, 315 |
3 | 108, 105 |
36, 35 |
∴ So the GCF of the given numbers is 3 x 3 x 3 = 27
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 342/27
Therefore the LCM of Fractions 18/972,38/945 is 342/27
Factors of 972
List of positive integer factors of 972 that divides 972 without a remainder.
1,2,3,4,6,9,12,18,27,36,54,81,108,162,243,324,486,972
Factors of 945
List of positive integer factors of 945 that divides 945 without a remainder.
1,3,5,7,9,15,21,27,35,45,63,105,135,189,315,945
Greatest Common Factor
We found the factors 972,945 . The biggest common factor number is the GCF number.
So the greatest common factor 972,945 is 27.
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 18/972, 38/945?
Answer: LCM of Numerators as per given numbers 18/972, 38/945 is
LCM of Numerators i.e. for 18,38 is 342
GCF of denominators i.e. for 972,945 is 27.
Thus, LCM of Fractions is 342/27.Finally, LCM of Fractions for 18/972, 38/945 is 342/27.