Least Common Multiple of 28/138, 7815/1940

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 28/138, 7815/1940 quickly i.e. 109410 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 28/138, 7815/1940 is 109410.

LCM(28/138, 7815/1940) = 109410

LCM of 28/138, 7815/1940

Enter two or more fractions separated by "commas"

Ex: 2/3, 5/7 or 3/5, 5/9, 7/3

LCM of:

Least Common Multiple of 28/138,7815/1940

Given numbers are 28/138,7815/1940

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 28,7815

Least Common Multiple of Numerators i.e. LCM of 28,7815 is 218820.

GCF of Denominators means GCF of 138,1940 as per the given fractions.

GCF of 138,1940 is 2 as it is the largest common factor for these numbers.

Lets's calculate LCM of 28,7815

LCM of Fractions 28/138,7815/1940 is 109410

Given numbers has no common factors except 1. So, there LCM is their product i.e 218820

Least Common Multiple of 28,7815 with GCF Formula

Least Common Multiple of 28,7815 with GCF Formula

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 28,7815 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(28,7815) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(28,7815) x common factors =1 x 1 = 1

LCM(28,7815) = ( 28 × 7815 ) / 1

LCM(28,7815) = 218820 / 1

LCM(28,7815) = 218820


Lets's calculate GCF of 138,1940

2 138, 1940
69, 970

∴ So the GCF of the given numbers is 2 = 2

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 218820/2

Therefore the LCM of Fractions 28/138,7815/1940 is 109410

Greatest Common Factor of 138,1940 By Matching Biggest Common Factor Method

Greatest Common Factor of 138,1940 By Matching Biggest Common Factor Method

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

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 138,1940 . The biggest common factor number is the GCF number.
So the greatest common factor 138,1940 is 2.


LCM of Fractions Calculation Examples

Here are some samples of LCM of Fractions calculations.

LCM of Fractions Calculation Examples

Here are some samples of LCM of Fractions calculations.

Frequently Asked Questions on Fractional LCM of 28/138, 7815/1940

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 28/138, 7815/1940?

Answer: LCM of Numerators as per given numbers 28/138, 7815/1940 is

LCM of Numerators i.e. for 28,7815 is 218820

GCF of denominators i.e. for 138,1940 is 2.

Thus, LCM of Fractions is 109410.Finally, LCM of Fractions for 28/138, 7815/1940 is 109410.