Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 79/72, 80/50, 65/85, 381/30 quickly i.e. 31302960 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 79/72, 80/50, 65/85, 381/30 is 31302960.
LCM(79/72, 80/50, 65/85, 381/30) = 31302960
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 79/72,80/50,65/85,381/30
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 79,80,65,381
Least Common Multiple of Numerators i.e. LCM of 79,80,65,381 is 31302960.
GCF of Denominators means GCF of 72,50,85,30 as per the given fractions.
GCF of 72,50,85,30 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 79,80,65,381
5 | 79, 80, 65, 381 |
79, 16, 13, 381 |
∴ So the LCM of the given numbers is 5 x 79 x 16 x 13 x 381 = 31302960
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 79,80,65,381 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(79,80,65,381) = 1
common factors(in case of two or more numbers have common factors) = 5
GCF(79,80,65,381) x common factors =1 x 5 = 5
LCM(79,80,65,381) = ( 79 × 80 × 65 × 381 ) / 5
LCM(79,80,65,381) = 156514800 / 5
LCM(79,80,65,381) = 31302960
Lets's calculate GCF of 72,50,85,30
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 31302960/1
Therefore the LCM of Fractions 79/72,80/50,65/85,381/30 is 31302960
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 50
List of positive integer factors of 50 that divides 50 without a remainder.
1,2,5,10,25,50
Factors of 85
List of positive integer factors of 85 that divides 85 without a remainder.
1,5,17,85
Factors of 30
List of positive integer factors of 30 that divides 30 without a remainder.
1,2,3,5,6,10,15,30
Greatest Common Factor
We found the factors 72,50,85,30 . The biggest common factor number is the GCF number.
So the greatest common factor 72,50,85,30 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 79/72, 80/50, 65/85, 381/30?
Answer: LCM of Numerators as per given numbers 79/72, 80/50, 65/85, 381/30 is
LCM of Numerators i.e. for 79,80,65,381 is 31302960
GCF of denominators i.e. for 72,50,85,30 is 1.
Thus, LCM of Fractions is 31302960.Finally, LCM of Fractions for 79/72, 80/50, 65/85, 381/30 is 31302960.