Least Common Multiple of 4/65, 78/21, 31/89, 15/68

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 4/65, 78/21, 31/89, 15/68 quickly i.e. 24180 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 4/65, 78/21, 31/89, 15/68 is 24180.

LCM(4/65, 78/21, 31/89, 15/68) = 24180

LCM of 4/65, 78/21, 31/89, 15/68

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 4/65,78/21,31/89,15/68

Given numbers are 4/65,78/21,31/89,15/68

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 4,78,31,15

Least Common Multiple of Numerators i.e. LCM of 4,78,31,15 is 24180.

GCF of Denominators means GCF of 65,21,89,68 as per the given fractions.

GCF of 65,21,89,68 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 4,78,31,15

LCM of Fractions 4/65,78/21,31/89,15/68 is 24180

2 4, 78, 31, 15
3 2, 39, 31, 15
2, 13, 31, 5

∴ So the LCM of the given numbers is 2 x 3 x 2 x 13 x 31 x 5 = 24180

Least Common Multiple of 4,78,31,15 with GCF Formula

Least Common Multiple of 4,78,31,15 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 4,78,31,15 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(4,78,31,15) = 1

common factors(in case of two or more numbers have common factors) = 6

GCF(4,78,31,15) x common factors =1 x 6 = 6

LCM(4,78,31,15) = ( 4 × 78 × 31 × 15 ) / 6

LCM(4,78,31,15) = 145080 / 6

LCM(4,78,31,15) = 24180


Lets's calculate GCF of 65,21,89,68

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 24180/1

Therefore the LCM of Fractions 4/65,78/21,31/89,15/68 is 24180

Greatest Common Factor of 65,21,89,68 By Matching Biggest Common Factor Method

Greatest Common Factor of 65,21,89,68 By Matching Biggest Common Factor Method

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 21

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

1,3,7,21

Factors of 89

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

1,89

Factors of 68

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

1,2,4,17,34,68

Greatest Common Factor

We found the factors 65,21,89,68 . The biggest common factor number is the GCF number.
So the greatest common factor 65,21,89,68 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 4/65, 78/21, 31/89, 15/68

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 4/65, 78/21, 31/89, 15/68?

Answer: LCM of Numerators as per given numbers 4/65, 78/21, 31/89, 15/68 is

LCM of Numerators i.e. for 4,78,31,15 is 24180

GCF of denominators i.e. for 65,21,89,68 is 1.

Thus, LCM of Fractions is 24180.Finally, LCM of Fractions for 4/65, 78/21, 31/89, 15/68 is 24180.