Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 99/38, 21/85, 97/742 quickly i.e. 67221 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 99/38, 21/85, 97/742 is 67221.
LCM(99/38, 21/85, 97/742) = 67221
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 99/38,21/85,97/742
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 99,21,97
Least Common Multiple of Numerators i.e. LCM of 99,21,97 is 67221.
GCF of Denominators means GCF of 38,85,742 as per the given fractions.
GCF of 38,85,742 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 99,21,97
3 | 99, 21, 97 |
33, 7, 97 |
∴ So the LCM of the given numbers is 3 x 33 x 7 x 97 = 67221
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 99,21,97 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(99,21,97) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(99,21,97) x common factors =1 x 3 = 3
LCM(99,21,97) = ( 99 × 21 × 97 ) / 3
LCM(99,21,97) = 201663 / 3
LCM(99,21,97) = 67221
Lets's calculate GCF of 38,85,742
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 67221/1
Therefore the LCM of Fractions 99/38,21/85,97/742 is 67221
Factors of 38
List of positive integer factors of 38 that divides 38 without a remainder.
1,2,19,38
Factors of 85
List of positive integer factors of 85 that divides 85 without a remainder.
1,5,17,85
Factors of 742
List of positive integer factors of 742 that divides 742 without a remainder.
1,2,7,14,53,106,371,742
Greatest Common Factor
We found the factors 38,85,742 . The biggest common factor number is the GCF number.
So the greatest common factor 38,85,742 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 99/38, 21/85, 97/742?
Answer: LCM of Numerators as per given numbers 99/38, 21/85, 97/742 is
LCM of Numerators i.e. for 99,21,97 is 67221
GCF of denominators i.e. for 38,85,742 is 1.
Thus, LCM of Fractions is 67221.Finally, LCM of Fractions for 99/38, 21/85, 97/742 is 67221.