Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 99/83, 68/91, 40/70, 90/768 quickly i.e. 67320 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 99/83, 68/91, 40/70, 90/768 is 67320.
LCM(99/83, 68/91, 40/70, 90/768) = 67320
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 99/83,68/91,40/70,90/768
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 99,68,40,90
Least Common Multiple of Numerators i.e. LCM of 99,68,40,90 is 67320.
GCF of Denominators means GCF of 83,91,70,768 as per the given fractions.
GCF of 83,91,70,768 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 99,68,40,90
2 | 99, 68, 40, 90 |
2 | 99, 34, 20, 45 |
3 | 99, 17, 10, 45 |
3 | 33, 17, 10, 15 |
5 | 11, 17, 10, 5 |
11, 17, 2, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 3 x 5 x 11 x 17 x 2 x 1 = 67320
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 99,68,40,90 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(99,68,40,90) = 1
common factors(in case of two or more numbers have common factors) = 360
GCF(99,68,40,90) x common factors =1 x 360 = 360
LCM(99,68,40,90) = ( 99 × 68 × 40 × 90 ) / 360
LCM(99,68,40,90) = 24235200 / 360
LCM(99,68,40,90) = 67320
Lets's calculate GCF of 83,91,70,768
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 67320/1
Therefore the LCM of Fractions 99/83,68/91,40/70,90/768 is 67320
Factors of 83
List of positive integer factors of 83 that divides 83 without a remainder.
1,83
Factors of 91
List of positive integer factors of 91 that divides 91 without a remainder.
1,7,13,91
Factors of 70
List of positive integer factors of 70 that divides 70 without a remainder.
1,2,5,7,10,14,35,70
Factors of 768
List of positive integer factors of 768 that divides 768 without a remainder.
1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,256,384,768
Greatest Common Factor
We found the factors 83,91,70,768 . The biggest common factor number is the GCF number.
So the greatest common factor 83,91,70,768 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 99/83, 68/91, 40/70, 90/768?
Answer: LCM of Numerators as per given numbers 99/83, 68/91, 40/70, 90/768 is
LCM of Numerators i.e. for 99,68,40,90 is 67320
GCF of denominators i.e. for 83,91,70,768 is 1.
Thus, LCM of Fractions is 67320.Finally, LCM of Fractions for 99/83, 68/91, 40/70, 90/768 is 67320.