Least Common Multiple of 7/40, 1/77, 83/81, 11/780

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Know Least Common Multiple of fractions 7/40, 1/77, 83/81, 11/780 quickly i.e. 6391 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 7/40, 1/77, 83/81, 11/780 is 6391.

LCM(7/40, 1/77, 83/81, 11/780) = 6391

LCM of 7/40, 1/77, 83/81, 11/780

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 7/40,1/77,83/81,11/780

Given numbers are 7/40,1/77,83/81,11/780

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 7,1,83,11

Least Common Multiple of Numerators i.e. LCM of 7,1,83,11 is 6391.

GCF of Denominators means GCF of 40,77,81,780 as per the given fractions.

GCF of 40,77,81,780 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 7,1,83,11

LCM of Fractions 7/40,1/77,83/81,11/780 is 6391

Given numbers has no common factors except 1. So, there LCM is their product i.e 6391

Least Common Multiple of 7,1,83,11 with GCF Formula

Least Common Multiple of 7,1,83,11 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 7,1,83,11 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(7,1,83,11) = 1

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

GCF(7,1,83,11) x common factors =1 x 1 = 1

LCM(7,1,83,11) = ( 7 × 1 × 83 × 11 ) / 1

LCM(7,1,83,11) = 6391 / 1

LCM(7,1,83,11) = 6391


Lets's calculate GCF of 40,77,81,780

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 6391/1

Therefore the LCM of Fractions 7/40,1/77,83/81,11/780 is 6391

Greatest Common Factor of 40,77,81,780 By Matching Biggest Common Factor Method

Greatest Common Factor of 40,77,81,780 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 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Greatest Common Factor

We found the factors 40,77,81,780 . The biggest common factor number is the GCF number.
So the greatest common factor 40,77,81,780 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 7/40, 1/77, 83/81, 11/780

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 7/40, 1/77, 83/81, 11/780?

Answer: LCM of Numerators as per given numbers 7/40, 1/77, 83/81, 11/780 is

LCM of Numerators i.e. for 7,1,83,11 is 6391

GCF of denominators i.e. for 40,77,81,780 is 1.

Thus, LCM of Fractions is 6391.Finally, LCM of Fractions for 7/40, 1/77, 83/81, 11/780 is 6391.