Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 91/38, 79/86, 80/40, 28/439 quickly i.e. 575120 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 91/38, 79/86, 80/40, 28/439 is 575120.
LCM(91/38, 79/86, 80/40, 28/439) = 575120
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 91/38,79/86,80/40,28/439
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 91,79,80,28
Least Common Multiple of Numerators i.e. LCM of 91,79,80,28 is 575120.
GCF of Denominators means GCF of 38,86,40,439 as per the given fractions.
GCF of 38,86,40,439 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 91,79,80,28
2 | 91, 79, 80, 28 |
2 | 91, 79, 40, 14 |
7 | 91, 79, 20, 7 |
13, 79, 20, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 7 x 13 x 79 x 20 x 1 = 575120
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 91,79,80,28 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(91,79,80,28) = 1
common factors(in case of two or more numbers have common factors) = 28
GCF(91,79,80,28) x common factors =1 x 28 = 28
LCM(91,79,80,28) = ( 91 × 79 × 80 × 28 ) / 28
LCM(91,79,80,28) = 16103360 / 28
LCM(91,79,80,28) = 575120
Lets's calculate GCF of 38,86,40,439
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 575120/1
Therefore the LCM of Fractions 91/38,79/86,80/40,28/439 is 575120
Factors of 38
List of positive integer factors of 38 that divides 38 without a remainder.
1,2,19,38
Factors of 86
List of positive integer factors of 86 that divides 86 without a remainder.
1,2,43,86
Factors of 40
List of positive integer factors of 40 that divides 40 without a remainder.
1,2,4,5,8,10,20,40
Factors of 439
List of positive integer factors of 439 that divides 439 without a remainder.
1,439
Greatest Common Factor
We found the factors 38,86,40,439 . The biggest common factor number is the GCF number.
So the greatest common factor 38,86,40,439 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 91/38, 79/86, 80/40, 28/439?
Answer: LCM of Numerators as per given numbers 91/38, 79/86, 80/40, 28/439 is
LCM of Numerators i.e. for 91,79,80,28 is 575120
GCF of denominators i.e. for 38,86,40,439 is 1.
Thus, LCM of Fractions is 575120.Finally, LCM of Fractions for 91/38, 79/86, 80/40, 28/439 is 575120.