Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 90/30, 56/21, 86/717 quickly i.e. 36120 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, 56/21, 86/717 is 36120.
LCM(90/30, 56/21, 86/717) = 36120
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 90/30,56/21,86/717
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 90,56,86
Least Common Multiple of Numerators i.e. LCM of 90,56,86 is 108360.
GCF of Denominators means GCF of 30,21,717 as per the given fractions.
GCF of 30,21,717 is 3 as it is the largest common factor for these numbers.
Lets's calculate LCM of 90,56,86
2 | 90, 56, 86 |
45, 28, 43 |
∴ So the LCM of the given numbers is 2 x 45 x 28 x 43 = 108360
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 90,56,86 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(90,56,86) = 2
common factors(in case of two or more numbers have common factors) = 2
GCF(90,56,86) x common factors =2 x 2 = 4
LCM(90,56,86) = ( 90 × 56 × 86 ) / 4
LCM(90,56,86) = 433440 / 4
LCM(90,56,86) = 108360
Lets's calculate GCF of 30,21,717
3 | 30, 21, 717 |
10, 7, 239 |
∴ So the GCF of the given numbers is 3 = 3
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 108360/3
Therefore the LCM of Fractions 90/30,56/21,86/717 is 36120
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 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 717
List of positive integer factors of 717 that divides 717 without a remainder.
1,3,239,717
Greatest Common Factor
We found the factors 30,21,717 . The biggest common factor number is the GCF number.
So the greatest common factor 30,21,717 is 3.
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, 56/21, 86/717?
Answer: LCM of Numerators as per given numbers 90/30, 56/21, 86/717 is
LCM of Numerators i.e. for 90,56,86 is 108360
GCF of denominators i.e. for 30,21,717 is 3.
Thus, LCM of Fractions is 36120.Finally, LCM of Fractions for 90/30, 56/21, 86/717 is 36120.