Least Common Multiple of 644/21, 269/70, 661/49

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 644/21, 269/70, 661/49 quickly i.e. 16358428 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 644/21, 269/70, 661/49 is 16358428.

LCM(644/21, 269/70, 661/49) = 16358428

LCM of 644/21, 269/70, 661/49

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 644/21,269/70,661/49

Given numbers are 644/21,269/70,661/49

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 644,269,661

Least Common Multiple of Numerators i.e. LCM of 644,269,661 is 114508996.

GCF of Denominators means GCF of 21,70,49 as per the given fractions.

GCF of 21,70,49 is 7 as it is the largest common factor for these numbers.

Lets's calculate LCM of 644,269,661

LCM of Fractions 644/21,269/70,661/49 is 16358428

Given numbers has no common factors except 1. So, there LCM is their product i.e 114508996

Least Common Multiple of 644,269,661 with GCF Formula

Least Common Multiple of 644,269,661 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 644,269,661 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(644,269,661) = 1

common factors(in case of two or more numbers have common factors) = 1

GCF(644,269,661) x common factors =1 x 1 = 1

LCM(644,269,661) = ( 644 × 269 × 661 ) / 1

LCM(644,269,661) = 114508996 / 1

LCM(644,269,661) = 114508996


Lets's calculate GCF of 21,70,49

7 21, 70, 49
3, 10, 7

∴ So the GCF of the given numbers is 7 = 7

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 114508996/7

Therefore the LCM of Fractions 644/21,269/70,661/49 is 16358428

Greatest Common Factor of 21,70,49 By Matching Biggest Common Factor Method

Greatest Common Factor of 21,70,49 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 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Greatest Common Factor

We found the factors 21,70,49 . The biggest common factor number is the GCF number.
So the greatest common factor 21,70,49 is 7.


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 644/21, 269/70, 661/49

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 644/21, 269/70, 661/49?

Answer: LCM of Numerators as per given numbers 644/21, 269/70, 661/49 is

LCM of Numerators i.e. for 644,269,661 is 114508996

GCF of denominators i.e. for 21,70,49 is 7.

Thus, LCM of Fractions is 16358428.Finally, LCM of Fractions for 644/21, 269/70, 661/49 is 16358428.