Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 398/84, 961/1940 quickly i.e. 382478/4 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 398/84, 961/1940 is 382478/4.
LCM(398/84, 961/1940) = 382478/4
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 398/84,961/1940
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 398,961
Least Common Multiple of Numerators i.e. LCM of 398,961 is 382478.
GCF of Denominators means GCF of 84,1940 as per the given fractions.
GCF of 84,1940 is 4 as it is the largest common factor for these numbers.
Lets's calculate LCM of 398,961
Given numbers has no common factors except 1. So, there LCM is their product i.e 382478
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 398,961 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(398,961) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(398,961) x common factors =1 x 1 = 1
LCM(398,961) = ( 398 × 961 ) / 1
LCM(398,961) = 382478 / 1
LCM(398,961) = 382478
Lets's calculate GCF of 84,1940
2 | 84, 1940 |
2 | 42, 970 |
21, 485 |
∴ So the GCF of the given numbers is 2 x 2 = 4
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 382478/4
Therefore the LCM of Fractions 398/84,961/1940 is 382478/4
Factors of 84
List of positive integer factors of 84 that divides 84 without a remainder.
1,2,3,4,6,7,12,14,21,28,42,84
Factors of 1940
List of positive integer factors of 1940 that divides 1940 without a remainder.
1,2,4,5,10,20,97,194,388,485,970,1940
Greatest Common Factor
We found the factors 84,1940 . The biggest common factor number is the GCF number.
So the greatest common factor 84,1940 is 4.
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 398/84, 961/1940?
Answer: LCM of Numerators as per given numbers 398/84, 961/1940 is
LCM of Numerators i.e. for 398,961 is 382478
GCF of denominators i.e. for 84,1940 is 4.
Thus, LCM of Fractions is 382478/4.Finally, LCM of Fractions for 398/84, 961/1940 is 382478/4.