Least Common Multiple of 13/57, 77/81, 28/71, 20/718

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 13/57, 77/81, 28/71, 20/718 quickly i.e. 20020 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 13/57, 77/81, 28/71, 20/718 is 20020.

LCM(13/57, 77/81, 28/71, 20/718) = 20020

LCM of 13/57, 77/81, 28/71, 20/718

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 13/57,77/81,28/71,20/718

Given numbers are 13/57,77/81,28/71,20/718

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 13,77,28,20

Least Common Multiple of Numerators i.e. LCM of 13,77,28,20 is 20020.

GCF of Denominators means GCF of 57,81,71,718 as per the given fractions.

GCF of 57,81,71,718 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 13,77,28,20

LCM of Fractions 13/57,77/81,28/71,20/718 is 20020

2 13, 77, 28, 20
2 13, 77, 14, 10
7 13, 77, 7, 5
13, 11, 1, 5

∴ So the LCM of the given numbers is 2 x 2 x 7 x 13 x 11 x 1 x 5 = 20020

Least Common Multiple of 13,77,28,20 with GCF Formula

Least Common Multiple of 13,77,28,20 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 13,77,28,20 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(13,77,28,20) = 1

common factors(in case of two or more numbers have common factors) = 28

GCF(13,77,28,20) x common factors =1 x 28 = 28

LCM(13,77,28,20) = ( 13 × 77 × 28 × 20 ) / 28

LCM(13,77,28,20) = 560560 / 28

LCM(13,77,28,20) = 20020


Lets's calculate GCF of 57,81,71,718

∴ So GCF of numbers is 1 because of no common factors present between them.

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 20020/1

Therefore the LCM of Fractions 13/57,77/81,28/71,20/718 is 20020

Greatest Common Factor of 57,81,71,718 By Matching Biggest Common Factor Method

Greatest Common Factor of 57,81,71,718 By Matching Biggest Common Factor Method

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 718

List of positive integer factors of 718 that divides 718 without a remainder.

1,2,359,718

Greatest Common Factor

We found the factors 57,81,71,718 . The biggest common factor number is the GCF number.
So the greatest common factor 57,81,71,718 is 1.


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 13/57, 77/81, 28/71, 20/718

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 13/57, 77/81, 28/71, 20/718?

Answer: LCM of Numerators as per given numbers 13/57, 77/81, 28/71, 20/718 is

LCM of Numerators i.e. for 13,77,28,20 is 20020

GCF of denominators i.e. for 57,81,71,718 is 1.

Thus, LCM of Fractions is 20020.Finally, LCM of Fractions for 13/57, 77/81, 28/71, 20/718 is 20020.