Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 66/69, 30/29, 96/54, 640/30 quickly i.e. 21120 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 66/69, 30/29, 96/54, 640/30 is 21120.
LCM(66/69, 30/29, 96/54, 640/30) = 21120
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 66/69,30/29,96/54,640/30
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 66,30,96,640
Least Common Multiple of Numerators i.e. LCM of 66,30,96,640 is 21120.
GCF of Denominators means GCF of 69,29,54,30 as per the given fractions.
GCF of 69,29,54,30 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 66,30,96,640
2 | 66, 30, 96, 640 |
2 | 33, 15, 48, 320 |
2 | 33, 15, 24, 160 |
2 | 33, 15, 12, 80 |
2 | 33, 15, 6, 40 |
3 | 33, 15, 3, 20 |
5 | 11, 5, 1, 20 |
11, 1, 1, 4 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 2 x 2 x 3 x 5 x 11 x 1 x 1 x 4 = 21120
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 66,30,96,640 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(66,30,96,640) = 2
common factors(in case of two or more numbers have common factors) = 2880
GCF(66,30,96,640) x common factors =2 x 2880 = 5760
LCM(66,30,96,640) = ( 66 × 30 × 96 × 640 ) / 5760
LCM(66,30,96,640) = 121651200 / 5760
LCM(66,30,96,640) = 21120
Lets's calculate GCF of 69,29,54,30
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 21120/1
Therefore the LCM of Fractions 66/69,30/29,96/54,640/30 is 21120
Factors of 69
List of positive integer factors of 69 that divides 69 without a remainder.
1,3,23,69
Factors of 29
List of positive integer factors of 29 that divides 29 without a remainder.
1,29
Factors of 54
List of positive integer factors of 54 that divides 54 without a remainder.
1,2,3,6,9,18,27,54
Factors of 30
List of positive integer factors of 30 that divides 30 without a remainder.
1,2,3,5,6,10,15,30
Greatest Common Factor
We found the factors 69,29,54,30 . The biggest common factor number is the GCF number.
So the greatest common factor 69,29,54,30 is 1.
Here are some samples of LCM of Fractions calculations.
Here are some samples of LCM of Fractions calculations.
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 66/69, 30/29, 96/54, 640/30?
Answer: LCM of Numerators as per given numbers 66/69, 30/29, 96/54, 640/30 is
LCM of Numerators i.e. for 66,30,96,640 is 21120
GCF of denominators i.e. for 69,29,54,30 is 1.
Thus, LCM of Fractions is 21120.Finally, LCM of Fractions for 66/69, 30/29, 96/54, 640/30 is 21120.