Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 90/442, 81/169 quickly i.e. 810/13 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 90/442, 81/169 is 810/13.
LCM(90/442, 81/169) = 810/13
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 90/442,81/169
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 90,81
Least Common Multiple of Numerators i.e. LCM of 90,81 is 810.
GCF of Denominators means GCF of 442,169 as per the given fractions.
GCF of 442,169 is 13 as it is the largest common factor for these numbers.
Lets's calculate LCM of 90,81
3 | 90, 81 |
3 | 30, 27 |
10, 9 |
∴ So the LCM of the given numbers is 3 x 3 x 10 x 9 = 810
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 90,81 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(90,81) = 9
common factors(in case of two or more numbers have common factors) = 1
GCF(90,81) x common factors =9 x 1 = 9
LCM(90,81) = ( 90 × 81 ) / 9
LCM(90,81) = 7290 / 9
LCM(90,81) = 810
Lets's calculate GCF of 442,169
13 | 442, 169 |
34, 13 |
∴ So the GCF of the given numbers is 13 = 13
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 810/13
Therefore the LCM of Fractions 90/442,81/169 is 810/13
Factors of 442
List of positive integer factors of 442 that divides 442 without a remainder.
1,2,13,17,26,34,221,442
Factors of 169
List of positive integer factors of 169 that divides 169 without a remainder.
1,13,169
Greatest Common Factor
We found the factors 442,169 . The biggest common factor number is the GCF number.
So the greatest common factor 442,169 is 13.
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 90/442, 81/169?
Answer: LCM of Numerators as per given numbers 90/442, 81/169 is
LCM of Numerators i.e. for 90,81 is 810
GCF of denominators i.e. for 442,169 is 13.
Thus, LCM of Fractions is 810/13.Finally, LCM of Fractions for 90/442, 81/169 is 810/13.