Least Common Multiple of 63/21, 69/43, 42/86, 28/769

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 63/21, 69/43, 42/86, 28/769 quickly i.e. 5796 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 63/21, 69/43, 42/86, 28/769 is 5796.

LCM(63/21, 69/43, 42/86, 28/769) = 5796

LCM of 63/21, 69/43, 42/86, 28/769

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 63/21,69/43,42/86,28/769

Given numbers are 63/21,69/43,42/86,28/769

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 63,69,42,28

Least Common Multiple of Numerators i.e. LCM of 63,69,42,28 is 5796.

GCF of Denominators means GCF of 21,43,86,769 as per the given fractions.

GCF of 21,43,86,769 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 63,69,42,28

LCM of Fractions 63/21,69/43,42/86,28/769 is 5796

2 63, 69, 42, 28
3 63, 69, 21, 14
7 7, 23, 21, 14
1, 23, 3, 2

∴ So the LCM of the given numbers is 2 x 3 x 7 x 1 x 23 x 3 x 2 = 5796

Least Common Multiple of 63,69,42,28 with GCF Formula

Least Common Multiple of 63,69,42,28 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 63,69,42,28 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(63,69,42,28) = 1

common factors(in case of two or more numbers have common factors) = 882

GCF(63,69,42,28) x common factors =1 x 882 = 882

LCM(63,69,42,28) = ( 63 × 69 × 42 × 28 ) / 882

LCM(63,69,42,28) = 5112072 / 882

LCM(63,69,42,28) = 5796


Lets's calculate GCF of 21,43,86,769

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 5796/1

Therefore the LCM of Fractions 63/21,69/43,42/86,28/769 is 5796

Greatest Common Factor of 21,43,86,769 By Matching Biggest Common Factor Method

Greatest Common Factor of 21,43,86,769 By Matching Biggest Common Factor Method

Factors of 21

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

1,3,7,21

Factors of 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

Factors of 769

List of positive integer factors of 769 that divides 769 without a remainder.

1,769

Greatest Common Factor

We found the factors 21,43,86,769 . The biggest common factor number is the GCF number.
So the greatest common factor 21,43,86,769 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 63/21, 69/43, 42/86, 28/769

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 63/21, 69/43, 42/86, 28/769?

Answer: LCM of Numerators as per given numbers 63/21, 69/43, 42/86, 28/769 is

LCM of Numerators i.e. for 63,69,42,28 is 5796

GCF of denominators i.e. for 21,43,86,769 is 1.

Thus, LCM of Fractions is 5796.Finally, LCM of Fractions for 63/21, 69/43, 42/86, 28/769 is 5796.