Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 42/21, 10/74, 65/75, 82/388 quickly i.e. 111930 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 42/21, 10/74, 65/75, 82/388 is 111930.
LCM(42/21, 10/74, 65/75, 82/388) = 111930
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 42/21,10/74,65/75,82/388
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 42,10,65,82
Least Common Multiple of Numerators i.e. LCM of 42,10,65,82 is 111930.
GCF of Denominators means GCF of 21,74,75,388 as per the given fractions.
GCF of 21,74,75,388 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 42,10,65,82
2 | 42, 10, 65, 82 |
5 | 21, 5, 65, 41 |
21, 1, 13, 41 |
∴ So the LCM of the given numbers is 2 x 5 x 21 x 1 x 13 x 41 = 111930
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 42,10,65,82 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(42,10,65,82) = 1
common factors(in case of two or more numbers have common factors) = 20
GCF(42,10,65,82) x common factors =1 x 20 = 20
LCM(42,10,65,82) = ( 42 × 10 × 65 × 82 ) / 20
LCM(42,10,65,82) = 2238600 / 20
LCM(42,10,65,82) = 111930
Lets's calculate GCF of 21,74,75,388
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 111930/1
Therefore the LCM of Fractions 42/21,10/74,65/75,82/388 is 111930
Factors of 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 74
List of positive integer factors of 74 that divides 74 without a remainder.
1,2,37,74
Factors of 75
List of positive integer factors of 75 that divides 75 without a remainder.
1,3,5,15,25,75
Factors of 388
List of positive integer factors of 388 that divides 388 without a remainder.
1,2,4,97,194,388
Greatest Common Factor
We found the factors 21,74,75,388 . The biggest common factor number is the GCF number.
So the greatest common factor 21,74,75,388 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 42/21, 10/74, 65/75, 82/388?
Answer: LCM of Numerators as per given numbers 42/21, 10/74, 65/75, 82/388 is
LCM of Numerators i.e. for 42,10,65,82 is 111930
GCF of denominators i.e. for 21,74,75,388 is 1.
Thus, LCM of Fractions is 111930.Finally, LCM of Fractions for 42/21, 10/74, 65/75, 82/388 is 111930.