Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 712/978, 140/783, 645/642 quickly i.e. 1071560 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 712/978, 140/783, 645/642 is 1071560.
LCM(712/978, 140/783, 645/642) = 1071560
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 712/978,140/783,645/642
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 712,140,645
Least Common Multiple of Numerators i.e. LCM of 712,140,645 is 3214680.
GCF of Denominators means GCF of 978,783,642 as per the given fractions.
GCF of 978,783,642 is 3 as it is the largest common factor for these numbers.
Lets's calculate LCM of 712,140,645
2 | 712, 140, 645 |
2 | 356, 70, 645 |
5 | 178, 35, 645 |
178, 7, 129 |
∴ So the LCM of the given numbers is 2 x 2 x 5 x 178 x 7 x 129 = 3214680
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 712,140,645 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(712,140,645) = 1
common factors(in case of two or more numbers have common factors) = 20
GCF(712,140,645) x common factors =1 x 20 = 20
LCM(712,140,645) = ( 712 × 140 × 645 ) / 20
LCM(712,140,645) = 64293600 / 20
LCM(712,140,645) = 3214680
Lets's calculate GCF of 978,783,642
3 | 978, 783, 642 |
326, 261, 214 |
∴ So the GCF of the given numbers is 3 = 3
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 3214680/3
Therefore the LCM of Fractions 712/978,140/783,645/642 is 1071560
Factors of 978
List of positive integer factors of 978 that divides 978 without a remainder.
1,2,3,6,163,326,489,978
Factors of 783
List of positive integer factors of 783 that divides 783 without a remainder.
1,3,9,27,29,87,261,783
Factors of 642
List of positive integer factors of 642 that divides 642 without a remainder.
1,2,3,6,107,214,321,642
Greatest Common Factor
We found the factors 978,783,642 . The biggest common factor number is the GCF number.
So the greatest common factor 978,783,642 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 712/978, 140/783, 645/642?
Answer: LCM of Numerators as per given numbers 712/978, 140/783, 645/642 is
LCM of Numerators i.e. for 712,140,645 is 3214680
GCF of denominators i.e. for 978,783,642 is 3.
Thus, LCM of Fractions is 1071560.Finally, LCM of Fractions for 712/978, 140/783, 645/642 is 1071560.