Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 77/99, 31/76, 33/20, 84/788 quickly i.e. 28644 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 77/99, 31/76, 33/20, 84/788 is 28644.
LCM(77/99, 31/76, 33/20, 84/788) = 28644
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 77/99,31/76,33/20,84/788
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 77,31,33,84
Least Common Multiple of Numerators i.e. LCM of 77,31,33,84 is 28644.
GCF of Denominators means GCF of 99,76,20,788 as per the given fractions.
GCF of 99,76,20,788 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 77,31,33,84
3 | 77, 31, 33, 84 |
7 | 77, 31, 11, 28 |
11 | 11, 31, 11, 4 |
1, 31, 1, 4 |
∴ So the LCM of the given numbers is 3 x 7 x 11 x 1 x 31 x 1 x 4 = 28644
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 77,31,33,84 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(77,31,33,84) = 1
common factors(in case of two or more numbers have common factors) = 231
GCF(77,31,33,84) x common factors =1 x 231 = 231
LCM(77,31,33,84) = ( 77 × 31 × 33 × 84 ) / 231
LCM(77,31,33,84) = 6616764 / 231
LCM(77,31,33,84) = 28644
Lets's calculate GCF of 99,76,20,788
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 28644/1
Therefore the LCM of Fractions 77/99,31/76,33/20,84/788 is 28644
Factors of 99
List of positive integer factors of 99 that divides 99 without a remainder.
1,3,9,11,33,99
Factors of 76
List of positive integer factors of 76 that divides 76 without a remainder.
1,2,4,19,38,76
Factors of 20
List of positive integer factors of 20 that divides 20 without a remainder.
1,2,4,5,10,20
Factors of 788
List of positive integer factors of 788 that divides 788 without a remainder.
1,2,4,197,394,788
Greatest Common Factor
We found the factors 99,76,20,788 . The biggest common factor number is the GCF number.
So the greatest common factor 99,76,20,788 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 77/99, 31/76, 33/20, 84/788?
Answer: LCM of Numerators as per given numbers 77/99, 31/76, 33/20, 84/788 is
LCM of Numerators i.e. for 77,31,33,84 is 28644
GCF of denominators i.e. for 99,76,20,788 is 1.
Thus, LCM of Fractions is 28644.Finally, LCM of Fractions for 77/99, 31/76, 33/20, 84/788 is 28644.