Least Common Multiple of 81/68, 54/89, 821/78

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 81/68, 54/89, 821/78 quickly i.e. 133002 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 81/68, 54/89, 821/78 is 133002.

LCM(81/68, 54/89, 821/78) = 133002

LCM of 81/68, 54/89, 821/78

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 81/68,54/89,821/78

Given numbers are 81/68,54/89,821/78

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 81,54,821

Least Common Multiple of Numerators i.e. LCM of 81,54,821 is 133002.

GCF of Denominators means GCF of 68,89,78 as per the given fractions.

GCF of 68,89,78 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 81,54,821

LCM of Fractions 81/68,54/89,821/78 is 133002

3 81, 54, 821
3 27, 18, 821
3 9, 6, 821
3, 2, 821

∴ So the LCM of the given numbers is 3 x 3 x 3 x 3 x 2 x 821 = 133002

Least Common Multiple of 81,54,821 with GCF Formula

Least Common Multiple of 81,54,821 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 81,54,821 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(81,54,821) = 1

common factors(in case of two or more numbers have common factors) = 27

GCF(81,54,821) x common factors =1 x 27 = 27

LCM(81,54,821) = ( 81 × 54 × 821 ) / 27

LCM(81,54,821) = 3591054 / 27

LCM(81,54,821) = 133002


Lets's calculate GCF of 68,89,78

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 133002/1

Therefore the LCM of Fractions 81/68,54/89,821/78 is 133002

Greatest Common Factor of 68,89,78 By Matching Biggest Common Factor Method

Greatest Common Factor of 68,89,78 By Matching Biggest Common Factor Method

Factors of 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Greatest Common Factor

We found the factors 68,89,78 . The biggest common factor number is the GCF number.
So the greatest common factor 68,89,78 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 81/68, 54/89, 821/78

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 81/68, 54/89, 821/78?

Answer: LCM of Numerators as per given numbers 81/68, 54/89, 821/78 is

LCM of Numerators i.e. for 81,54,821 is 133002

GCF of denominators i.e. for 68,89,78 is 1.

Thus, LCM of Fractions is 133002.Finally, LCM of Fractions for 81/68, 54/89, 821/78 is 133002.