Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 36/87, 10/63, 21/12, 21/85 quickly i.e. 1260 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 36/87, 10/63, 21/12, 21/85 is 1260.
LCM(36/87, 10/63, 21/12, 21/85) = 1260
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 36/87,10/63,21/12,21/85
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 36,10,21,21
Least Common Multiple of Numerators i.e. LCM of 36,10,21,21 is 1260.
GCF of Denominators means GCF of 87,63,12,85 as per the given fractions.
GCF of 87,63,12,85 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 36,10,21,21
2 | 36, 10, 21, 21 |
3 | 18, 5, 21, 21 |
7 | 6, 5, 7, 7 |
6, 5, 1, 1 |
∴ So the LCM of the given numbers is 2 x 3 x 7 x 6 x 5 x 1 x 1 = 1260
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 36,10,21,21 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(36,10,21,21) = 1
common factors(in case of two or more numbers have common factors) = 126
GCF(36,10,21,21) x common factors =1 x 126 = 126
LCM(36,10,21,21) = ( 36 × 10 × 21 × 21 ) / 126
LCM(36,10,21,21) = 158760 / 126
LCM(36,10,21,21) = 1260
Lets's calculate GCF of 87,63,12,85
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1260/1
Therefore the LCM of Fractions 36/87,10/63,21/12,21/85 is 1260
Factors of 87
List of positive integer factors of 87 that divides 87 without a remainder.
1,3,29,87
Factors of 63
List of positive integer factors of 63 that divides 63 without a remainder.
1,3,7,9,21,63
Factors of 12
List of positive integer factors of 12 that divides 12 without a remainder.
1,2,3,4,6,12
Factors of 85
List of positive integer factors of 85 that divides 85 without a remainder.
1,5,17,85
Greatest Common Factor
We found the factors 87,63,12,85 . The biggest common factor number is the GCF number.
So the greatest common factor 87,63,12,85 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 36/87, 10/63, 21/12, 21/85?
Answer: LCM of Numerators as per given numbers 36/87, 10/63, 21/12, 21/85 is
LCM of Numerators i.e. for 36,10,21,21 is 1260
GCF of denominators i.e. for 87,63,12,85 is 1.
Thus, LCM of Fractions is 1260.Finally, LCM of Fractions for 36/87, 10/63, 21/12, 21/85 is 1260.