Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 45/13, 86/94, 21/142 quickly i.e. 27090 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 45/13, 86/94, 21/142 is 27090.
LCM(45/13, 86/94, 21/142) = 27090
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 45/13,86/94,21/142
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 45,86,21
Least Common Multiple of Numerators i.e. LCM of 45,86,21 is 27090.
GCF of Denominators means GCF of 13,94,142 as per the given fractions.
GCF of 13,94,142 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 45,86,21
3 | 45, 86, 21 |
15, 86, 7 |
∴ So the LCM of the given numbers is 3 x 15 x 86 x 7 = 27090
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 45,86,21 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(45,86,21) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(45,86,21) x common factors =1 x 3 = 3
LCM(45,86,21) = ( 45 × 86 × 21 ) / 3
LCM(45,86,21) = 81270 / 3
LCM(45,86,21) = 27090
Lets's calculate GCF of 13,94,142
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 27090/1
Therefore the LCM of Fractions 45/13,86/94,21/142 is 27090
Factors of 13
List of positive integer factors of 13 that divides 13 without a remainder.
1,13
Factors of 94
List of positive integer factors of 94 that divides 94 without a remainder.
1,2,47,94
Factors of 142
List of positive integer factors of 142 that divides 142 without a remainder.
1,2,71,142
Greatest Common Factor
We found the factors 13,94,142 . The biggest common factor number is the GCF number.
So the greatest common factor 13,94,142 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 45/13, 86/94, 21/142?
Answer: LCM of Numerators as per given numbers 45/13, 86/94, 21/142 is
LCM of Numerators i.e. for 45,86,21 is 27090
GCF of denominators i.e. for 13,94,142 is 1.
Thus, LCM of Fractions is 27090.Finally, LCM of Fractions for 45/13, 86/94, 21/142 is 27090.