Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 47/20, 42/16, 82/15, 84/662 quickly i.e. 161868 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 47/20, 42/16, 82/15, 84/662 is 161868.
LCM(47/20, 42/16, 82/15, 84/662) = 161868
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 47/20,42/16,82/15,84/662
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 47,42,82,84
Least Common Multiple of Numerators i.e. LCM of 47,42,82,84 is 161868.
GCF of Denominators means GCF of 20,16,15,662 as per the given fractions.
GCF of 20,16,15,662 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 47,42,82,84
2 | 47, 42, 82, 84 |
3 | 47, 21, 41, 42 |
7 | 47, 7, 41, 14 |
47, 1, 41, 2 |
∴ So the LCM of the given numbers is 2 x 3 x 7 x 47 x 1 x 41 x 2 = 161868
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 47,42,82,84 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(47,42,82,84) = 1
common factors(in case of two or more numbers have common factors) = 84
GCF(47,42,82,84) x common factors =1 x 84 = 84
LCM(47,42,82,84) = ( 47 × 42 × 82 × 84 ) / 84
LCM(47,42,82,84) = 13596912 / 84
LCM(47,42,82,84) = 161868
Lets's calculate GCF of 20,16,15,662
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 161868/1
Therefore the LCM of Fractions 47/20,42/16,82/15,84/662 is 161868
Factors of 20
List of positive integer factors of 20 that divides 20 without a remainder.
1,2,4,5,10,20
Factors of 16
List of positive integer factors of 16 that divides 16 without a remainder.
1,2,4,8,16
Factors of 15
List of positive integer factors of 15 that divides 15 without a remainder.
1,3,5,15
Factors of 662
List of positive integer factors of 662 that divides 662 without a remainder.
1,2,331,662
Greatest Common Factor
We found the factors 20,16,15,662 . The biggest common factor number is the GCF number.
So the greatest common factor 20,16,15,662 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 47/20, 42/16, 82/15, 84/662?
Answer: LCM of Numerators as per given numbers 47/20, 42/16, 82/15, 84/662 is
LCM of Numerators i.e. for 47,42,82,84 is 161868
GCF of denominators i.e. for 20,16,15,662 is 1.
Thus, LCM of Fractions is 161868.Finally, LCM of Fractions for 47/20, 42/16, 82/15, 84/662 is 161868.