Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 69/63, 69/69, 36/18, 65/645 quickly i.e. 17940 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 69/63, 69/69, 36/18, 65/645 is 17940.
LCM(69/63, 69/69, 36/18, 65/645) = 17940
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 69/63,69/69,36/18,65/645
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 69,69,36,65
Least Common Multiple of Numerators i.e. LCM of 69,69,36,65 is 53820.
GCF of Denominators means GCF of 63,69,18,645 as per the given fractions.
GCF of 63,69,18,645 is 3 as it is the largest common factor for these numbers.
Lets's calculate LCM of 69,69,36,65
3 | 69, 69, 36, 65 |
23 | 23, 23, 12, 65 |
1, 1, 12, 65 |
∴ So the LCM of the given numbers is 3 x 23 x 1 x 1 x 12 x 65 = 53820
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 69,69,36,65 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(69,69,36,65) = 1
common factors(in case of two or more numbers have common factors) = 207
GCF(69,69,36,65) x common factors =1 x 207 = 207
LCM(69,69,36,65) = ( 69 × 69 × 36 × 65 ) / 207
LCM(69,69,36,65) = 11140740 / 207
LCM(69,69,36,65) = 53820
Lets's calculate GCF of 63,69,18,645
3 | 63, 69, 18, 645 |
21, 23, 6, 215 |
∴ So the GCF of the given numbers is 3 = 3
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 53820/3
Therefore the LCM of Fractions 69/63,69/69,36/18,65/645 is 17940
Factors of 63
List of positive integer factors of 63 that divides 63 without a remainder.
1,3,7,9,21,63
Factors of 69
List of positive integer factors of 69 that divides 69 without a remainder.
1,3,23,69
Factors of 18
List of positive integer factors of 18 that divides 18 without a remainder.
1,2,3,6,9,18
Factors of 645
List of positive integer factors of 645 that divides 645 without a remainder.
1,3,5,15,43,129,215,645
Greatest Common Factor
We found the factors 63,69,18,645 . The biggest common factor number is the GCF number.
So the greatest common factor 63,69,18,645 is 3.
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 69/63, 69/69, 36/18, 65/645?
Answer: LCM of Numerators as per given numbers 69/63, 69/69, 36/18, 65/645 is
LCM of Numerators i.e. for 69,69,36,65 is 53820
GCF of denominators i.e. for 63,69,18,645 is 3.
Thus, LCM of Fractions is 17940.Finally, LCM of Fractions for 69/63, 69/69, 36/18, 65/645 is 17940.