Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 128/10, 130/71, 985/20 quickly i.e. 1639040 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 128/10, 130/71, 985/20 is 1639040.
LCM(128/10, 130/71, 985/20) = 1639040
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 128/10,130/71,985/20
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 128,130,985
Least Common Multiple of Numerators i.e. LCM of 128,130,985 is 1639040.
GCF of Denominators means GCF of 10,71,20 as per the given fractions.
GCF of 10,71,20 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 128,130,985
2 | 128, 130, 985 |
5 | 64, 65, 985 |
64, 13, 197 |
∴ So the LCM of the given numbers is 2 x 5 x 64 x 13 x 197 = 1639040
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 128,130,985 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(128,130,985) = 1
common factors(in case of two or more numbers have common factors) = 10
GCF(128,130,985) x common factors =1 x 10 = 10
LCM(128,130,985) = ( 128 × 130 × 985 ) / 10
LCM(128,130,985) = 16390400 / 10
LCM(128,130,985) = 1639040
Lets's calculate GCF of 10,71,20
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1639040/1
Therefore the LCM of Fractions 128/10,130/71,985/20 is 1639040
Factors of 10
List of positive integer factors of 10 that divides 10 without a remainder.
1,2,5,10
Factors of 71
List of positive integer factors of 71 that divides 71 without a remainder.
1,71
Factors of 20
List of positive integer factors of 20 that divides 20 without a remainder.
1,2,4,5,10,20
Greatest Common Factor
We found the factors 10,71,20 . The biggest common factor number is the GCF number.
So the greatest common factor 10,71,20 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 128/10, 130/71, 985/20?
Answer: LCM of Numerators as per given numbers 128/10, 130/71, 985/20 is
LCM of Numerators i.e. for 128,130,985 is 1639040
GCF of denominators i.e. for 10,71,20 is 1.
Thus, LCM of Fractions is 1639040.Finally, LCM of Fractions for 128/10, 130/71, 985/20 is 1639040.