Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 4/39, 5/31, 1/21, 79/807 quickly i.e. 1580 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 4/39, 5/31, 1/21, 79/807 is 1580.
LCM(4/39, 5/31, 1/21, 79/807) = 1580
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 4/39,5/31,1/21,79/807
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 4,5,1,79
Least Common Multiple of Numerators i.e. LCM of 4,5,1,79 is 1580.
GCF of Denominators means GCF of 39,31,21,807 as per the given fractions.
GCF of 39,31,21,807 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 4,5,1,79
Given numbers has no common factors except 1. So, there LCM is their product i.e 1580
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 4,5,1,79 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(4,5,1,79) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(4,5,1,79) x common factors =1 x 1 = 1
LCM(4,5,1,79) = ( 4 × 5 × 1 × 79 ) / 1
LCM(4,5,1,79) = 1580 / 1
LCM(4,5,1,79) = 1580
Lets's calculate GCF of 39,31,21,807
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1580/1
Therefore the LCM of Fractions 4/39,5/31,1/21,79/807 is 1580
Factors of 39
List of positive integer factors of 39 that divides 39 without a remainder.
1,3,13,39
Factors of 31
List of positive integer factors of 31 that divides 31 without a remainder.
1,31
Factors of 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 807
List of positive integer factors of 807 that divides 807 without a remainder.
1,3,269,807
Greatest Common Factor
We found the factors 39,31,21,807 . The biggest common factor number is the GCF number.
So the greatest common factor 39,31,21,807 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 4/39, 5/31, 1/21, 79/807?
Answer: LCM of Numerators as per given numbers 4/39, 5/31, 1/21, 79/807 is
LCM of Numerators i.e. for 4,5,1,79 is 1580
GCF of denominators i.e. for 39,31,21,807 is 1.
Thus, LCM of Fractions is 1580.Finally, LCM of Fractions for 4/39, 5/31, 1/21, 79/807 is 1580.