Least Common Multiple of 80/40, 56/38, 84/578

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 80/40, 56/38, 84/578 quickly i.e. 840 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 80/40, 56/38, 84/578 is 840.

LCM(80/40, 56/38, 84/578) = 840

LCM of 80/40, 56/38, 84/578

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 80/40,56/38,84/578

Given numbers are 80/40,56/38,84/578

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 80,56,84

Least Common Multiple of Numerators i.e. LCM of 80,56,84 is 1680.

GCF of Denominators means GCF of 40,38,578 as per the given fractions.

GCF of 40,38,578 is 2 as it is the largest common factor for these numbers.

Lets's calculate LCM of 80,56,84

LCM of Fractions 80/40,56/38,84/578 is 840

2 80, 56, 84
2 40, 28, 42
2 20, 14, 21
7 10, 7, 21
10, 1, 3

∴ So the LCM of the given numbers is 2 x 2 x 2 x 7 x 10 x 1 x 3 = 1680

Least Common Multiple of 80,56,84 with GCF Formula

Least Common Multiple of 80,56,84 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 80,56,84 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(80,56,84) = 4

common factors(in case of two or more numbers have common factors) = 56

GCF(80,56,84) x common factors =4 x 56 = 224

LCM(80,56,84) = ( 80 × 56 × 84 ) / 224

LCM(80,56,84) = 376320 / 224

LCM(80,56,84) = 1680


Lets's calculate GCF of 40,38,578

2 40, 38, 578
20, 19, 289

∴ So the GCF of the given numbers is 2 = 2

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1680/2

Therefore the LCM of Fractions 80/40,56/38,84/578 is 840

Greatest Common Factor of 40,38,578 By Matching Biggest Common Factor Method

Greatest Common Factor of 40,38,578 By Matching Biggest Common Factor Method

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 578

List of positive integer factors of 578 that divides 578 without a remainder.

1,2,17,34,289,578

Greatest Common Factor

We found the factors 40,38,578 . The biggest common factor number is the GCF number.
So the greatest common factor 40,38,578 is 2.


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 80/40, 56/38, 84/578

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 80/40, 56/38, 84/578?

Answer: LCM of Numerators as per given numbers 80/40, 56/38, 84/578 is

LCM of Numerators i.e. for 80,56,84 is 1680

GCF of denominators i.e. for 40,38,578 is 2.

Thus, LCM of Fractions is 840.Finally, LCM of Fractions for 80/40, 56/38, 84/578 is 840.