Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 20/11, 56/42, 70/373 quickly i.e. 280 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 20/11, 56/42, 70/373 is 280.
LCM(20/11, 56/42, 70/373) = 280
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 20/11,56/42,70/373
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 20,56,70
Least Common Multiple of Numerators i.e. LCM of 20,56,70 is 280.
GCF of Denominators means GCF of 11,42,373 as per the given fractions.
GCF of 11,42,373 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 20,56,70
2 | 20, 56, 70 |
2 | 10, 28, 35 |
5 | 5, 14, 35 |
7 | 1, 14, 7 |
1, 2, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 5 x 7 x 1 x 2 x 1 = 280
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 20,56,70 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(20,56,70) = 2
common factors(in case of two or more numbers have common factors) = 140
GCF(20,56,70) x common factors =2 x 140 = 280
LCM(20,56,70) = ( 20 × 56 × 70 ) / 280
LCM(20,56,70) = 78400 / 280
LCM(20,56,70) = 280
Lets's calculate GCF of 11,42,373
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 280/1
Therefore the LCM of Fractions 20/11,56/42,70/373 is 280
Factors of 11
List of positive integer factors of 11 that divides 11 without a remainder.
1,11
Factors of 42
List of positive integer factors of 42 that divides 42 without a remainder.
1,2,3,6,7,14,21,42
Factors of 373
List of positive integer factors of 373 that divides 373 without a remainder.
1,373
Greatest Common Factor
We found the factors 11,42,373 . The biggest common factor number is the GCF number.
So the greatest common factor 11,42,373 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 20/11, 56/42, 70/373?
Answer: LCM of Numerators as per given numbers 20/11, 56/42, 70/373 is
LCM of Numerators i.e. for 20,56,70 is 280
GCF of denominators i.e. for 11,42,373 is 1.
Thus, LCM of Fractions is 280.Finally, LCM of Fractions for 20/11, 56/42, 70/373 is 280.