Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 12/85, 51/91, 90/815 quickly i.e. 3060 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 12/85, 51/91, 90/815 is 3060.
LCM(12/85, 51/91, 90/815) = 3060
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 12/85,51/91,90/815
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 12,51,90
Least Common Multiple of Numerators i.e. LCM of 12,51,90 is 3060.
GCF of Denominators means GCF of 85,91,815 as per the given fractions.
GCF of 85,91,815 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 12,51,90
2 | 12, 51, 90 |
3 | 6, 51, 45 |
2, 17, 15 |
∴ So the LCM of the given numbers is 2 x 3 x 2 x 17 x 15 = 3060
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 12,51,90 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(12,51,90) = 3
common factors(in case of two or more numbers have common factors) = 6
GCF(12,51,90) x common factors =3 x 6 = 18
LCM(12,51,90) = ( 12 × 51 × 90 ) / 18
LCM(12,51,90) = 55080 / 18
LCM(12,51,90) = 3060
Lets's calculate GCF of 85,91,815
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 3060/1
Therefore the LCM of Fractions 12/85,51/91,90/815 is 3060
Factors of 85
List of positive integer factors of 85 that divides 85 without a remainder.
1,5,17,85
Factors of 91
List of positive integer factors of 91 that divides 91 without a remainder.
1,7,13,91
Factors of 815
List of positive integer factors of 815 that divides 815 without a remainder.
1,5,163,815
Greatest Common Factor
We found the factors 85,91,815 . The biggest common factor number is the GCF number.
So the greatest common factor 85,91,815 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 12/85, 51/91, 90/815?
Answer: LCM of Numerators as per given numbers 12/85, 51/91, 90/815 is
LCM of Numerators i.e. for 12,51,90 is 3060
GCF of denominators i.e. for 85,91,815 is 1.
Thus, LCM of Fractions is 3060.Finally, LCM of Fractions for 12/85, 51/91, 90/815 is 3060.