Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 81/72, 63/74, 87/25, 43/355 quickly i.e. 707049 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 81/72, 63/74, 87/25, 43/355 is 707049.
LCM(81/72, 63/74, 87/25, 43/355) = 707049
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 81/72,63/74,87/25,43/355
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 81,63,87,43
Least Common Multiple of Numerators i.e. LCM of 81,63,87,43 is 707049.
GCF of Denominators means GCF of 72,74,25,355 as per the given fractions.
GCF of 72,74,25,355 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 81,63,87,43
3 | 81, 63, 87, 43 |
3 | 27, 21, 29, 43 |
9, 7, 29, 43 |
∴ So the LCM of the given numbers is 3 x 3 x 9 x 7 x 29 x 43 = 707049
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 81,63,87,43 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,63,87,43) = 1
common factors(in case of two or more numbers have common factors) = 27
GCF(81,63,87,43) x common factors =1 x 27 = 27
LCM(81,63,87,43) = ( 81 × 63 × 87 × 43 ) / 27
LCM(81,63,87,43) = 19090323 / 27
LCM(81,63,87,43) = 707049
Lets's calculate GCF of 72,74,25,355
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 707049/1
Therefore the LCM of Fractions 81/72,63/74,87/25,43/355 is 707049
Factors of 72
List of positive integer factors of 72 that divides 72 without a remainder.
1,2,3,4,6,8,9,12,18,24,36,72
Factors of 74
List of positive integer factors of 74 that divides 74 without a remainder.
1,2,37,74
Factors of 25
List of positive integer factors of 25 that divides 25 without a remainder.
1,5,25
Factors of 355
List of positive integer factors of 355 that divides 355 without a remainder.
1,5,71,355
Greatest Common Factor
We found the factors 72,74,25,355 . The biggest common factor number is the GCF number.
So the greatest common factor 72,74,25,355 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 81/72, 63/74, 87/25, 43/355?
Answer: LCM of Numerators as per given numbers 81/72, 63/74, 87/25, 43/355 is
LCM of Numerators i.e. for 81,63,87,43 is 707049
GCF of denominators i.e. for 72,74,25,355 is 1.
Thus, LCM of Fractions is 707049.Finally, LCM of Fractions for 81/72, 63/74, 87/25, 43/355 is 707049.