Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 42/21, 11/60, 34/46, 90/110 quickly i.e. 117810 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 42/21, 11/60, 34/46, 90/110 is 117810.
LCM(42/21, 11/60, 34/46, 90/110) = 117810
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 42/21,11/60,34/46,90/110
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 42,11,34,90
Least Common Multiple of Numerators i.e. LCM of 42,11,34,90 is 117810.
GCF of Denominators means GCF of 21,60,46,110 as per the given fractions.
GCF of 21,60,46,110 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 42,11,34,90
2 | 42, 11, 34, 90 |
3 | 21, 11, 17, 45 |
7, 11, 17, 15 |
∴ So the LCM of the given numbers is 2 x 3 x 7 x 11 x 17 x 15 = 117810
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 42,11,34,90 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(42,11,34,90) = 1
common factors(in case of two or more numbers have common factors) = 12
GCF(42,11,34,90) x common factors =1 x 12 = 12
LCM(42,11,34,90) = ( 42 × 11 × 34 × 90 ) / 12
LCM(42,11,34,90) = 1413720 / 12
LCM(42,11,34,90) = 117810
Lets's calculate GCF of 21,60,46,110
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 117810/1
Therefore the LCM of Fractions 42/21,11/60,34/46,90/110 is 117810
Factors of 21
List of positive integer factors of 21 that divides 21 without a remainder.
1,3,7,21
Factors of 60
List of positive integer factors of 60 that divides 60 without a remainder.
1,2,3,4,5,6,10,12,15,20,30,60
Factors of 46
List of positive integer factors of 46 that divides 46 without a remainder.
1,2,23,46
Factors of 110
List of positive integer factors of 110 that divides 110 without a remainder.
1,2,5,10,11,22,55,110
Greatest Common Factor
We found the factors 21,60,46,110 . The biggest common factor number is the GCF number.
So the greatest common factor 21,60,46,110 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 42/21, 11/60, 34/46, 90/110?
Answer: LCM of Numerators as per given numbers 42/21, 11/60, 34/46, 90/110 is
LCM of Numerators i.e. for 42,11,34,90 is 117810
GCF of denominators i.e. for 21,60,46,110 is 1.
Thus, LCM of Fractions is 117810.Finally, LCM of Fractions for 42/21, 11/60, 34/46, 90/110 is 117810.