Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 87/76, 32/81, 21/97, 17/394 quickly i.e. 331296 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 87/76, 32/81, 21/97, 17/394 is 331296.
LCM(87/76, 32/81, 21/97, 17/394) = 331296
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 87/76,32/81,21/97,17/394
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 87,32,21,17
Least Common Multiple of Numerators i.e. LCM of 87,32,21,17 is 331296.
GCF of Denominators means GCF of 76,81,97,394 as per the given fractions.
GCF of 76,81,97,394 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 87,32,21,17
3 | 87, 32, 21, 17 |
29, 32, 7, 17 |
∴ So the LCM of the given numbers is 3 x 29 x 32 x 7 x 17 = 331296
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 87,32,21,17 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(87,32,21,17) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(87,32,21,17) x common factors =1 x 3 = 3
LCM(87,32,21,17) = ( 87 × 32 × 21 × 17 ) / 3
LCM(87,32,21,17) = 993888 / 3
LCM(87,32,21,17) = 331296
Lets's calculate GCF of 76,81,97,394
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 331296/1
Therefore the LCM of Fractions 87/76,32/81,21/97,17/394 is 331296
Factors of 76
List of positive integer factors of 76 that divides 76 without a remainder.
1,2,4,19,38,76
Factors of 81
List of positive integer factors of 81 that divides 81 without a remainder.
1,3,9,27,81
Factors of 97
List of positive integer factors of 97 that divides 97 without a remainder.
1,97
Factors of 394
List of positive integer factors of 394 that divides 394 without a remainder.
1,2,197,394
Greatest Common Factor
We found the factors 76,81,97,394 . The biggest common factor number is the GCF number.
So the greatest common factor 76,81,97,394 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 87/76, 32/81, 21/97, 17/394?
Answer: LCM of Numerators as per given numbers 87/76, 32/81, 21/97, 17/394 is
LCM of Numerators i.e. for 87,32,21,17 is 331296
GCF of denominators i.e. for 76,81,97,394 is 1.
Thus, LCM of Fractions is 331296.Finally, LCM of Fractions for 87/76, 32/81, 21/97, 17/394 is 331296.