Least Common Multiple of 66/78, 54/14, 90/66, 63/691

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023


Know Least Common Multiple of fractions 66/78, 54/14, 90/66, 63/691 quickly i.e. 20790 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.

Least Common Multiple (LCM) of 66/78, 54/14, 90/66, 63/691 is 20790.

LCM(66/78, 54/14, 90/66, 63/691) = 20790

LCM of 66/78, 54/14, 90/66, 63/691

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 66/78,54/14,90/66,63/691

Given numbers are 66/78,54/14,90/66,63/691

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 66,54,90,63

Least Common Multiple of Numerators i.e. LCM of 66,54,90,63 is 20790.

GCF of Denominators means GCF of 78,14,66,691 as per the given fractions.

GCF of 78,14,66,691 is 1 as it is the largest common factor for these numbers.

Lets's calculate LCM of 66,54,90,63

LCM of Fractions 66/78,54/14,90/66,63/691 is 20790

2 66, 54, 90, 63
3 33, 27, 45, 63
3 11, 9, 15, 21
11, 3, 5, 7

∴ So the LCM of the given numbers is 2 x 3 x 3 x 11 x 3 x 5 x 7 = 20790

Least Common Multiple of 66,54,90,63 with GCF Formula

Least Common Multiple of 66,54,90,63 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 66,54,90,63 and common factors if more than two numbers have common factor, than apply into the LCM equation.

GCF(66,54,90,63) = 3

common factors(in case of two or more numbers have common factors) = 324

GCF(66,54,90,63) x common factors =3 x 324 = 972

LCM(66,54,90,63) = ( 66 × 54 × 90 × 63 ) / 972

LCM(66,54,90,63) = 20207880 / 972

LCM(66,54,90,63) = 20790


Lets's calculate GCF of 78,14,66,691

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

Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 20790/1

Therefore the LCM of Fractions 66/78,54/14,90/66,63/691 is 20790

Greatest Common Factor of 78,14,66,691 By Matching Biggest Common Factor Method

Greatest Common Factor of 78,14,66,691 By Matching Biggest Common Factor Method

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 14

List of positive integer factors of 14 that divides 14 without a remainder.

1,2,7,14

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 691

List of positive integer factors of 691 that divides 691 without a remainder.

1,691

Greatest Common Factor

We found the factors 78,14,66,691 . The biggest common factor number is the GCF number.
So the greatest common factor 78,14,66,691 is 1.


LCM of Fractions Calculation Examples

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LCM of Fractions Calculation Examples

Frequently Asked Questions on Fractional LCM of 66/78, 54/14, 90/66, 63/691

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 66/78, 54/14, 90/66, 63/691?

Answer: LCM of Numerators as per given numbers 66/78, 54/14, 90/66, 63/691 is

LCM of Numerators i.e. for 66,54,90,63 is 20790

GCF of denominators i.e. for 78,14,66,691 is 1.

Thus, LCM of Fractions is 20790.Finally, LCM of Fractions for 66/78, 54/14, 90/66, 63/691 is 20790.