Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 90/30, 57/16, 38/32, 762/81 quickly i.e. 217170 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 90/30, 57/16, 38/32, 762/81 is 217170.
LCM(90/30, 57/16, 38/32, 762/81) = 217170
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 90/30,57/16,38/32,762/81
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 90,57,38,762
Least Common Multiple of Numerators i.e. LCM of 90,57,38,762 is 217170.
GCF of Denominators means GCF of 30,16,32,81 as per the given fractions.
GCF of 30,16,32,81 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 90,57,38,762
2 | 90, 57, 38, 762 |
3 | 45, 57, 19, 381 |
19 | 15, 19, 19, 127 |
15, 1, 1, 127 |
∴ So the LCM of the given numbers is 2 x 3 x 19 x 15 x 1 x 1 x 127 = 217170
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 90,57,38,762 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(90,57,38,762) = 1
common factors(in case of two or more numbers have common factors) = 684
GCF(90,57,38,762) x common factors =1 x 684 = 684
LCM(90,57,38,762) = ( 90 × 57 × 38 × 762 ) / 684
LCM(90,57,38,762) = 148544280 / 684
LCM(90,57,38,762) = 217170
Lets's calculate GCF of 30,16,32,81
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 217170/1
Therefore the LCM of Fractions 90/30,57/16,38/32,762/81 is 217170
Factors of 30
List of positive integer factors of 30 that divides 30 without a remainder.
1,2,3,5,6,10,15,30
Factors of 16
List of positive integer factors of 16 that divides 16 without a remainder.
1,2,4,8,16
Factors of 32
List of positive integer factors of 32 that divides 32 without a remainder.
1,2,4,8,16,32
Factors of 81
List of positive integer factors of 81 that divides 81 without a remainder.
1,3,9,27,81
Greatest Common Factor
We found the factors 30,16,32,81 . The biggest common factor number is the GCF number.
So the greatest common factor 30,16,32,81 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 90/30, 57/16, 38/32, 762/81?
Answer: LCM of Numerators as per given numbers 90/30, 57/16, 38/32, 762/81 is
LCM of Numerators i.e. for 90,57,38,762 is 217170
GCF of denominators i.e. for 30,16,32,81 is 1.
Thus, LCM of Fractions is 217170.Finally, LCM of Fractions for 90/30, 57/16, 38/32, 762/81 is 217170.