Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 30/83, 90/55, 90/12, 12/143 quickly i.e. 180 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 30/83, 90/55, 90/12, 12/143 is 180.
LCM(30/83, 90/55, 90/12, 12/143) = 180
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 30/83,90/55,90/12,12/143
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 30,90,90,12
Least Common Multiple of Numerators i.e. LCM of 30,90,90,12 is 180.
GCF of Denominators means GCF of 83,55,12,143 as per the given fractions.
GCF of 83,55,12,143 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 30,90,90,12
2 | 30, 90, 90, 12 |
3 | 15, 45, 45, 6 |
3 | 5, 15, 15, 2 |
5 | 5, 5, 5, 2 |
1, 1, 1, 2 |
∴ So the LCM of the given numbers is 2 x 3 x 3 x 5 x 1 x 1 x 1 x 2 = 180
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 30,90,90,12 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(30,90,90,12) = 6
common factors(in case of two or more numbers have common factors) = 2700
GCF(30,90,90,12) x common factors =6 x 2700 = 16200
LCM(30,90,90,12) = ( 30 × 90 × 90 × 12 ) / 16200
LCM(30,90,90,12) = 2916000 / 16200
LCM(30,90,90,12) = 180
Lets's calculate GCF of 83,55,12,143
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 180/1
Therefore the LCM of Fractions 30/83,90/55,90/12,12/143 is 180
Factors of 83
List of positive integer factors of 83 that divides 83 without a remainder.
1,83
Factors of 55
List of positive integer factors of 55 that divides 55 without a remainder.
1,5,11,55
Factors of 12
List of positive integer factors of 12 that divides 12 without a remainder.
1,2,3,4,6,12
Factors of 143
List of positive integer factors of 143 that divides 143 without a remainder.
1,11,13,143
Greatest Common Factor
We found the factors 83,55,12,143 . The biggest common factor number is the GCF number.
So the greatest common factor 83,55,12,143 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 30/83, 90/55, 90/12, 12/143?
Answer: LCM of Numerators as per given numbers 30/83, 90/55, 90/12, 12/143 is
LCM of Numerators i.e. for 30,90,90,12 is 180
GCF of denominators i.e. for 83,55,12,143 is 1.
Thus, LCM of Fractions is 180.Finally, LCM of Fractions for 30/83, 90/55, 90/12, 12/143 is 180.