Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 75/69, 83/21, 65/43, 39/660 quickly i.e. 80925 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 75/69, 83/21, 65/43, 39/660 is 80925.
LCM(75/69, 83/21, 65/43, 39/660) = 80925
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 75/69,83/21,65/43,39/660
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 75,83,65,39
Least Common Multiple of Numerators i.e. LCM of 75,83,65,39 is 80925.
GCF of Denominators means GCF of 69,21,43,660 as per the given fractions.
GCF of 69,21,43,660 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 75,83,65,39
3 | 75, 83, 65, 39 |
5 | 25, 83, 65, 13 |
13 | 5, 83, 13, 13 |
5, 83, 1, 1 |
∴ So the LCM of the given numbers is 3 x 5 x 13 x 5 x 83 x 1 x 1 = 80925
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 75,83,65,39 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(75,83,65,39) = 1
common factors(in case of two or more numbers have common factors) = 195
GCF(75,83,65,39) x common factors =1 x 195 = 195
LCM(75,83,65,39) = ( 75 × 83 × 65 × 39 ) / 195
LCM(75,83,65,39) = 15780375 / 195
LCM(75,83,65,39) = 80925
Lets's calculate GCF of 69,21,43,660
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 80925/1
Therefore the LCM of Fractions 75/69,83/21,65/43,39/660 is 80925
Factors of 69
List of positive integer factors of 69 that divides 69 without a remainder.
1,3,23,69
Factors of 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 43
List of positive integer factors of 43 that divides 43 without a remainder.
1,43
Factors of 660
List of positive integer factors of 660 that divides 660 without a remainder.
1,2,3,4,5,6,10,11,12,15,20,22,30,33,44,55,60,66,110,132,165,220,330,660
Greatest Common Factor
We found the factors 69,21,43,660 . The biggest common factor number is the GCF number.
So the greatest common factor 69,21,43,660 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 75/69, 83/21, 65/43, 39/660?
Answer: LCM of Numerators as per given numbers 75/69, 83/21, 65/43, 39/660 is
LCM of Numerators i.e. for 75,83,65,39 is 80925
GCF of denominators i.e. for 69,21,43,660 is 1.
Thus, LCM of Fractions is 80925.Finally, LCM of Fractions for 75/69, 83/21, 65/43, 39/660 is 80925.