Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 72/80, 73/31, 40/87, 29/743 quickly i.e. 762120 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 72/80, 73/31, 40/87, 29/743 is 762120.
LCM(72/80, 73/31, 40/87, 29/743) = 762120
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 72/80,73/31,40/87,29/743
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 72,73,40,29
Least Common Multiple of Numerators i.e. LCM of 72,73,40,29 is 762120.
GCF of Denominators means GCF of 80,31,87,743 as per the given fractions.
GCF of 80,31,87,743 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 72,73,40,29
2 | 72, 73, 40, 29 |
2 | 36, 73, 20, 29 |
2 | 18, 73, 10, 29 |
9, 73, 5, 29 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 9 x 73 x 5 x 29 = 762120
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 72,73,40,29 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(72,73,40,29) = 1
common factors(in case of two or more numbers have common factors) = 8
GCF(72,73,40,29) x common factors =1 x 8 = 8
LCM(72,73,40,29) = ( 72 × 73 × 40 × 29 ) / 8
LCM(72,73,40,29) = 6096960 / 8
LCM(72,73,40,29) = 762120
Lets's calculate GCF of 80,31,87,743
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 762120/1
Therefore the LCM of Fractions 72/80,73/31,40/87,29/743 is 762120
Factors of 80
List of positive integer factors of 80 that divides 80 without a remainder.
1,2,4,5,8,10,16,20,40,80
Factors of 31
List of positive integer factors of 31 that divides 31 without a remainder.
1,31
Factors of 87
List of positive integer factors of 87 that divides 87 without a remainder.
1,3,29,87
Factors of 743
List of positive integer factors of 743 that divides 743 without a remainder.
1,743
Greatest Common Factor
We found the factors 80,31,87,743 . The biggest common factor number is the GCF number.
So the greatest common factor 80,31,87,743 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 72/80, 73/31, 40/87, 29/743?
Answer: LCM of Numerators as per given numbers 72/80, 73/31, 40/87, 29/743 is
LCM of Numerators i.e. for 72,73,40,29 is 762120
GCF of denominators i.e. for 80,31,87,743 is 1.
Thus, LCM of Fractions is 762120.Finally, LCM of Fractions for 72/80, 73/31, 40/87, 29/743 is 762120.