Least Common Multiple of 720/84, 691/21, 891/646

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 720/84, 691/21, 891/646 quickly i.e. 49254480 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 720/84, 691/21, 891/646 is 49254480.

LCM(720/84, 691/21, 891/646) = 49254480

LCM of 720/84, 691/21, 891/646

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 720/84,691/21,891/646

Given numbers are 720/84,691/21,891/646

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 720,691,891

Least Common Multiple of Numerators i.e. LCM of 720,691,891 is 49254480.

GCF of Denominators means GCF of 84,21,646 as per the given fractions.

GCF of 84,21,646 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 720,691,891

LCM of Fractions 720/84,691/21,891/646 is 49254480

3 720, 691, 891
3 240, 691, 297
80, 691, 99

∴ So the LCM of the given numbers is 3 x 3 x 80 x 691 x 99 = 49254480

Least Common Multiple of 720,691,891 with GCF Formula

Least Common Multiple of 720,691,891 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 720,691,891 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(720,691,891) = 1

common factors(in case of two or more numbers have common factors) = 9

GCF(720,691,891) x common factors =1 x 9 = 9

LCM(720,691,891) = ( 720 × 691 × 891 ) / 9

LCM(720,691,891) = 443290320 / 9

LCM(720,691,891) = 49254480


Lets's calculate GCF of 84,21,646

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 49254480/1

Therefore the LCM of Fractions 720/84,691/21,891/646 is 49254480

Greatest Common Factor of 84,21,646 By Matching Biggest Common Factor Method

Greatest Common Factor of 84,21,646 By Matching Biggest Common Factor Method

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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 646

List of positive integer factors of 646 that divides 646 without a remainder.

1,2,17,19,34,38,323,646

Greatest Common Factor

We found the factors 84,21,646 . The biggest common factor number is the GCF number.
So the greatest common factor 84,21,646 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 720/84, 691/21, 891/646

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 720/84, 691/21, 891/646?

Answer: LCM of Numerators as per given numbers 720/84, 691/21, 891/646 is

LCM of Numerators i.e. for 720,691,891 is 49254480

GCF of denominators i.e. for 84,21,646 is 1.

Thus, LCM of Fractions is 49254480.Finally, LCM of Fractions for 720/84, 691/21, 891/646 is 49254480.