Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 8/61, 7/17, 3/66, 90/309 quickly i.e. 2520 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 8/61, 7/17, 3/66, 90/309 is 2520.
LCM(8/61, 7/17, 3/66, 90/309) = 2520
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 8/61,7/17,3/66,90/309
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 8,7,3,90
Least Common Multiple of Numerators i.e. LCM of 8,7,3,90 is 2520.
GCF of Denominators means GCF of 61,17,66,309 as per the given fractions.
GCF of 61,17,66,309 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 8,7,3,90
2 | 8, 7, 3, 90 |
3 | 4, 7, 3, 45 |
4, 7, 1, 15 |
∴ So the LCM of the given numbers is 2 x 3 x 4 x 7 x 1 x 15 = 2520
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 8,7,3,90 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(8,7,3,90) = 1
common factors(in case of two or more numbers have common factors) = 6
GCF(8,7,3,90) x common factors =1 x 6 = 6
LCM(8,7,3,90) = ( 8 × 7 × 3 × 90 ) / 6
LCM(8,7,3,90) = 15120 / 6
LCM(8,7,3,90) = 2520
Lets's calculate GCF of 61,17,66,309
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 2520/1
Therefore the LCM of Fractions 8/61,7/17,3/66,90/309 is 2520
Factors of 61
List of positive integer factors of 61 that divides 61 without a remainder.
1,61
Factors of 17
List of positive integer factors of 17 that divides 17 without a remainder.
1,17
Factors of 66
List of positive integer factors of 66 that divides 66 without a remainder.
1,2,3,6,11,22,33,66
Factors of 309
List of positive integer factors of 309 that divides 309 without a remainder.
1,3,103,309
Greatest Common Factor
We found the factors 61,17,66,309 . The biggest common factor number is the GCF number.
So the greatest common factor 61,17,66,309 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 8/61, 7/17, 3/66, 90/309?
Answer: LCM of Numerators as per given numbers 8/61, 7/17, 3/66, 90/309 is
LCM of Numerators i.e. for 8,7,3,90 is 2520
GCF of denominators i.e. for 61,17,66,309 is 1.
Thus, LCM of Fractions is 2520.Finally, LCM of Fractions for 8/61, 7/17, 3/66, 90/309 is 2520.