Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 78/693, 312/72, 645/414 quickly i.e. 67080/9 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 78/693, 312/72, 645/414 is 67080/9.
LCM(78/693, 312/72, 645/414) = 67080/9
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 78/693,312/72,645/414
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 78,312,645
Least Common Multiple of Numerators i.e. LCM of 78,312,645 is 67080.
GCF of Denominators means GCF of 693,72,414 as per the given fractions.
GCF of 693,72,414 is 9 as it is the largest common factor for these numbers.
Lets's calculate LCM of 78,312,645
2 | 78, 312, 645 |
3 | 39, 156, 645 |
13 | 13, 52, 215 |
1, 4, 215 |
∴ So the LCM of the given numbers is 2 x 3 x 13 x 1 x 4 x 215 = 67080
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 78,312,645 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(78,312,645) = 3
common factors(in case of two or more numbers have common factors) = 78
GCF(78,312,645) x common factors =3 x 78 = 234
LCM(78,312,645) = ( 78 × 312 × 645 ) / 234
LCM(78,312,645) = 15696720 / 234
LCM(78,312,645) = 67080
Lets's calculate GCF of 693,72,414
3 | 693, 72, 414 |
3 | 231, 24, 138 |
77, 8, 46 |
∴ So the GCF of the given numbers is 3 x 3 = 9
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 67080/9
Therefore the LCM of Fractions 78/693,312/72,645/414 is 67080/9
Factors of 693
List of positive integer factors of 693 that divides 693 without a remainder.
1,3,7,9,11,21,33,63,77,99,231,693
Factors of 72
List of positive integer factors of 72 that divides 72 without a remainder.
1,2,3,4,6,8,9,12,18,24,36,72
Factors of 414
List of positive integer factors of 414 that divides 414 without a remainder.
1,2,3,6,9,18,23,46,69,138,207,414
Greatest Common Factor
We found the factors 693,72,414 . The biggest common factor number is the GCF number.
So the greatest common factor 693,72,414 is 9.
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 78/693, 312/72, 645/414?
Answer: LCM of Numerators as per given numbers 78/693, 312/72, 645/414 is
LCM of Numerators i.e. for 78,312,645 is 67080
GCF of denominators i.e. for 693,72,414 is 9.
Thus, LCM of Fractions is 67080/9.Finally, LCM of Fractions for 78/693, 312/72, 645/414 is 67080/9.