Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 64/37, 72/70, 20/61, 18/98 quickly i.e. 2880 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 64/37, 72/70, 20/61, 18/98 is 2880.
LCM(64/37, 72/70, 20/61, 18/98) = 2880
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 64/37,72/70,20/61,18/98
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 64,72,20,18
Least Common Multiple of Numerators i.e. LCM of 64,72,20,18 is 2880.
GCF of Denominators means GCF of 37,70,61,98 as per the given fractions.
GCF of 37,70,61,98 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 64,72,20,18
2 | 64, 72, 20, 18 |
2 | 32, 36, 10, 9 |
2 | 16, 18, 5, 9 |
3 | 8, 9, 5, 9 |
3 | 8, 3, 5, 3 |
8, 1, 5, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 3 x 3 x 8 x 1 x 5 x 1 = 2880
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 64,72,20,18 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(64,72,20,18) = 2
common factors(in case of two or more numbers have common factors) = 288
GCF(64,72,20,18) x common factors =2 x 288 = 576
LCM(64,72,20,18) = ( 64 × 72 × 20 × 18 ) / 576
LCM(64,72,20,18) = 1658880 / 576
LCM(64,72,20,18) = 2880
Lets's calculate GCF of 37,70,61,98
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 2880/1
Therefore the LCM of Fractions 64/37,72/70,20/61,18/98 is 2880
Factors of 37
List of positive integer factors of 37 that divides 37 without a remainder.
1,37
Factors of 70
List of positive integer factors of 70 that divides 70 without a remainder.
1,2,5,7,10,14,35,70
Factors of 61
List of positive integer factors of 61 that divides 61 without a remainder.
1,61
Factors of 98
List of positive integer factors of 98 that divides 98 without a remainder.
1,2,7,14,49,98
Greatest Common Factor
We found the factors 37,70,61,98 . The biggest common factor number is the GCF number.
So the greatest common factor 37,70,61,98 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 64/37, 72/70, 20/61, 18/98?
Answer: LCM of Numerators as per given numbers 64/37, 72/70, 20/61, 18/98 is
LCM of Numerators i.e. for 64,72,20,18 is 2880
GCF of denominators i.e. for 37,70,61,98 is 1.
Thus, LCM of Fractions is 2880.Finally, LCM of Fractions for 64/37, 72/70, 20/61, 18/98 is 2880.