Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 70/45, 31/27, 41/72, 75/81 quickly i.e. 1334550/9 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 70/45, 31/27, 41/72, 75/81 is 1334550/9.
LCM(70/45, 31/27, 41/72, 75/81) = 1334550/9
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 70/45,31/27,41/72,75/81
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 70,31,41,75
Least Common Multiple of Numerators i.e. LCM of 70,31,41,75 is 1334550.
GCF of Denominators means GCF of 45,27,72,81 as per the given fractions.
GCF of 45,27,72,81 is 9 as it is the largest common factor for these numbers.
Lets's calculate LCM of 70,31,41,75
5 | 70, 31, 41, 75 |
14, 31, 41, 15 |
∴ So the LCM of the given numbers is 5 x 14 x 31 x 41 x 15 = 1334550
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 70,31,41,75 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(70,31,41,75) = 1
common factors(in case of two or more numbers have common factors) = 5
GCF(70,31,41,75) x common factors =1 x 5 = 5
LCM(70,31,41,75) = ( 70 × 31 × 41 × 75 ) / 5
LCM(70,31,41,75) = 6672750 / 5
LCM(70,31,41,75) = 1334550
Lets's calculate GCF of 45,27,72,81
3 | 45, 27, 72, 81 |
3 | 15, 9, 24, 27 |
5, 3, 8, 9 |
∴ So the GCF of the given numbers is 3 x 3 = 9
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1334550/9
Therefore the LCM of Fractions 70/45,31/27,41/72,75/81 is 1334550/9
Factors of 45
List of positive integer factors of 45 that divides 45 without a remainder.
1,3,5,9,15,45
Factors of 27
List of positive integer factors of 27 that divides 27 without a remainder.
1,3,9,27
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 81
List of positive integer factors of 81 that divides 81 without a remainder.
1,3,9,27,81
Greatest Common Factor
We found the factors 45,27,72,81 . The biggest common factor number is the GCF number.
So the greatest common factor 45,27,72,81 is 9.
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 70/45, 31/27, 41/72, 75/81?
Answer: LCM of Numerators as per given numbers 70/45, 31/27, 41/72, 75/81 is
LCM of Numerators i.e. for 70,31,41,75 is 1334550
GCF of denominators i.e. for 45,27,72,81 is 9.
Thus, LCM of Fractions is 1334550/9.Finally, LCM of Fractions for 70/45, 31/27, 41/72, 75/81 is 1334550/9.