Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 9/28, 3/77, 45/82, 90/116 quickly i.e. 90 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 9/28, 3/77, 45/82, 90/116 is 90.
LCM(9/28, 3/77, 45/82, 90/116) = 90
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 9/28,3/77,45/82,90/116
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 9,3,45,90
Least Common Multiple of Numerators i.e. LCM of 9,3,45,90 is 90.
GCF of Denominators means GCF of 28,77,82,116 as per the given fractions.
GCF of 28,77,82,116 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 9,3,45,90
3 | 9, 3, 45, 90 |
3 | 3, 1, 15, 30 |
5 | 1, 1, 5, 10 |
1, 1, 1, 2 |
∴ So the LCM of the given numbers is 3 x 3 x 5 x 1 x 1 x 1 x 2 = 90
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 9,3,45,90 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(9,3,45,90) = 3
common factors(in case of two or more numbers have common factors) = 405
GCF(9,3,45,90) x common factors =3 x 405 = 1215
LCM(9,3,45,90) = ( 9 × 3 × 45 × 90 ) / 1215
LCM(9,3,45,90) = 109350 / 1215
LCM(9,3,45,90) = 90
Lets's calculate GCF of 28,77,82,116
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 90/1
Therefore the LCM of Fractions 9/28,3/77,45/82,90/116 is 90
Factors of 28
List of positive integer factors of 28 that divides 28 without a remainder.
1,2,4,7,14,28
Factors of 77
List of positive integer factors of 77 that divides 77 without a remainder.
1,7,11,77
Factors of 82
List of positive integer factors of 82 that divides 82 without a remainder.
1,2,41,82
Factors of 116
List of positive integer factors of 116 that divides 116 without a remainder.
1,2,4,29,58,116
Greatest Common Factor
We found the factors 28,77,82,116 . The biggest common factor number is the GCF number.
So the greatest common factor 28,77,82,116 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 9/28, 3/77, 45/82, 90/116?
Answer: LCM of Numerators as per given numbers 9/28, 3/77, 45/82, 90/116 is
LCM of Numerators i.e. for 9,3,45,90 is 90
GCF of denominators i.e. for 28,77,82,116 is 1.
Thus, LCM of Fractions is 90.Finally, LCM of Fractions for 9/28, 3/77, 45/82, 90/116 is 90.