Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 20/40, 79/70, 80/867 quickly i.e. 6320 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 20/40, 79/70, 80/867 is 6320.
LCM(20/40, 79/70, 80/867) = 6320
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 20/40,79/70,80/867
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 20,79,80
Least Common Multiple of Numerators i.e. LCM of 20,79,80 is 6320.
GCF of Denominators means GCF of 40,70,867 as per the given fractions.
GCF of 40,70,867 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 20,79,80
2 | 20, 79, 80 |
2 | 10, 79, 40 |
5 | 5, 79, 20 |
1, 79, 4 |
∴ So the LCM of the given numbers is 2 x 2 x 5 x 1 x 79 x 4 = 6320
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 20,79,80 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(20,79,80) = 1
common factors(in case of two or more numbers have common factors) = 20
GCF(20,79,80) x common factors =1 x 20 = 20
LCM(20,79,80) = ( 20 × 79 × 80 ) / 20
LCM(20,79,80) = 126400 / 20
LCM(20,79,80) = 6320
Lets's calculate GCF of 40,70,867
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 6320/1
Therefore the LCM of Fractions 20/40,79/70,80/867 is 6320
Factors of 40
List of positive integer factors of 40 that divides 40 without a remainder.
1,2,4,5,8,10,20,40
Factors of 70
List of positive integer factors of 70 that divides 70 without a remainder.
1,2,5,7,10,14,35,70
Factors of 867
List of positive integer factors of 867 that divides 867 without a remainder.
1,3,17,51,289,867
Greatest Common Factor
We found the factors 40,70,867 . The biggest common factor number is the GCF number.
So the greatest common factor 40,70,867 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 20/40, 79/70, 80/867?
Answer: LCM of Numerators as per given numbers 20/40, 79/70, 80/867 is
LCM of Numerators i.e. for 20,79,80 is 6320
GCF of denominators i.e. for 40,70,867 is 1.
Thus, LCM of Fractions is 6320.Finally, LCM of Fractions for 20/40, 79/70, 80/867 is 6320.