Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 8/72, 14/645, 78/741 quickly i.e. 728 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 8/72, 14/645, 78/741 is 728.
LCM(8/72, 14/645, 78/741) = 728
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 8/72,14/645,78/741
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 8,14,78
Least Common Multiple of Numerators i.e. LCM of 8,14,78 is 2184.
GCF of Denominators means GCF of 72,645,741 as per the given fractions.
GCF of 72,645,741 is 3 as it is the largest common factor for these numbers.
Lets's calculate LCM of 8,14,78
2 | 8, 14, 78 |
4, 7, 39 |
∴ So the LCM of the given numbers is 2 x 4 x 7 x 39 = 2184
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 8,14,78 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(8,14,78) = 2
common factors(in case of two or more numbers have common factors) = 2
GCF(8,14,78) x common factors =2 x 2 = 4
LCM(8,14,78) = ( 8 × 14 × 78 ) / 4
LCM(8,14,78) = 8736 / 4
LCM(8,14,78) = 2184
Lets's calculate GCF of 72,645,741
3 | 72, 645, 741 |
24, 215, 247 |
∴ So the GCF of the given numbers is 3 = 3
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 2184/3
Therefore the LCM of Fractions 8/72,14/645,78/741 is 728
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 645
List of positive integer factors of 645 that divides 645 without a remainder.
1,3,5,15,43,129,215,645
Factors of 741
List of positive integer factors of 741 that divides 741 without a remainder.
1,3,13,19,39,57,247,741
Greatest Common Factor
We found the factors 72,645,741 . The biggest common factor number is the GCF number.
So the greatest common factor 72,645,741 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 8/72, 14/645, 78/741?
Answer: LCM of Numerators as per given numbers 8/72, 14/645, 78/741 is
LCM of Numerators i.e. for 8,14,78 is 2184
GCF of denominators i.e. for 72,645,741 is 3.
Thus, LCM of Fractions is 728.Finally, LCM of Fractions for 8/72, 14/645, 78/741 is 728.