Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 90/35, 84/10, 35/23, 69/39 quickly i.e. 28980 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 90/35, 84/10, 35/23, 69/39 is 28980.
LCM(90/35, 84/10, 35/23, 69/39) = 28980
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 90/35,84/10,35/23,69/39
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 90,84,35,69
Least Common Multiple of Numerators i.e. LCM of 90,84,35,69 is 28980.
GCF of Denominators means GCF of 35,10,23,39 as per the given fractions.
GCF of 35,10,23,39 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 90,84,35,69
2 | 90, 84, 35, 69 |
3 | 45, 42, 35, 69 |
5 | 15, 14, 35, 23 |
7 | 3, 14, 7, 23 |
3, 2, 1, 23 |
∴ So the LCM of the given numbers is 2 x 3 x 5 x 7 x 3 x 2 x 1 x 23 = 28980
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 90,84,35,69 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(90,84,35,69) = 1
common factors(in case of two or more numbers have common factors) = 630
GCF(90,84,35,69) x common factors =1 x 630 = 630
LCM(90,84,35,69) = ( 90 × 84 × 35 × 69 ) / 630
LCM(90,84,35,69) = 18257400 / 630
LCM(90,84,35,69) = 28980
Lets's calculate GCF of 35,10,23,39
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 28980/1
Therefore the LCM of Fractions 90/35,84/10,35/23,69/39 is 28980
Factors of 35
List of positive integer factors of 35 that divides 35 without a remainder.
1,5,7,35
Factors of 10
List of positive integer factors of 10 that divides 10 without a remainder.
1,2,5,10
Factors of 23
List of positive integer factors of 23 that divides 23 without a remainder.
1,23
Factors of 39
List of positive integer factors of 39 that divides 39 without a remainder.
1,3,13,39
Greatest Common Factor
We found the factors 35,10,23,39 . The biggest common factor number is the GCF number.
So the greatest common factor 35,10,23,39 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 90/35, 84/10, 35/23, 69/39?
Answer: LCM of Numerators as per given numbers 90/35, 84/10, 35/23, 69/39 is
LCM of Numerators i.e. for 90,84,35,69 is 28980
GCF of denominators i.e. for 35,10,23,39 is 1.
Thus, LCM of Fractions is 28980.Finally, LCM of Fractions for 90/35, 84/10, 35/23, 69/39 is 28980.