Least Common Multiple of 13/91, 17/36, 21/76, 28/74

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 13/91, 17/36, 21/76, 28/74 quickly i.e. 18564 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 13/91, 17/36, 21/76, 28/74 is 18564.

LCM(13/91, 17/36, 21/76, 28/74) = 18564

LCM of 13/91, 17/36, 21/76, 28/74

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 13/91,17/36,21/76,28/74

Given numbers are 13/91,17/36,21/76,28/74

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 13,17,21,28

Least Common Multiple of Numerators i.e. LCM of 13,17,21,28 is 18564.

GCF of Denominators means GCF of 91,36,76,74 as per the given fractions.

GCF of 91,36,76,74 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 13,17,21,28

LCM of Fractions 13/91,17/36,21/76,28/74 is 18564

7 13, 17, 21, 28
13, 17, 3, 4

∴ So the LCM of the given numbers is 7 x 13 x 17 x 3 x 4 = 18564

Least Common Multiple of 13,17,21,28 with GCF Formula

Least Common Multiple of 13,17,21,28 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 13,17,21,28 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(13,17,21,28) = 1

common factors(in case of two or more numbers have common factors) = 7

GCF(13,17,21,28) x common factors =1 x 7 = 7

LCM(13,17,21,28) = ( 13 × 17 × 21 × 28 ) / 7

LCM(13,17,21,28) = 129948 / 7

LCM(13,17,21,28) = 18564


Lets's calculate GCF of 91,36,76,74

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 18564/1

Therefore the LCM of Fractions 13/91,17/36,21/76,28/74 is 18564

Greatest Common Factor of 91,36,76,74 By Matching Biggest Common Factor Method

Greatest Common Factor of 91,36,76,74 By Matching Biggest Common Factor Method

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Greatest Common Factor

We found the factors 91,36,76,74 . The biggest common factor number is the GCF number.
So the greatest common factor 91,36,76,74 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 13/91, 17/36, 21/76, 28/74

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 13/91, 17/36, 21/76, 28/74?

Answer: LCM of Numerators as per given numbers 13/91, 17/36, 21/76, 28/74 is

LCM of Numerators i.e. for 13,17,21,28 is 18564

GCF of denominators i.e. for 91,36,76,74 is 1.

Thus, LCM of Fractions is 18564.Finally, LCM of Fractions for 13/91, 17/36, 21/76, 28/74 is 18564.