Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 42/38, 69/22, 15/61, 15/35 quickly i.e. 4830 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 42/38, 69/22, 15/61, 15/35 is 4830.
LCM(42/38, 69/22, 15/61, 15/35) = 4830
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 42/38,69/22,15/61,15/35
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 42,69,15,15
Least Common Multiple of Numerators i.e. LCM of 42,69,15,15 is 4830.
GCF of Denominators means GCF of 38,22,61,35 as per the given fractions.
GCF of 38,22,61,35 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 42,69,15,15
3 | 42, 69, 15, 15 |
5 | 14, 23, 5, 5 |
14, 23, 1, 1 |
∴ So the LCM of the given numbers is 3 x 5 x 14 x 23 x 1 x 1 = 4830
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 42,69,15,15 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(42,69,15,15) = 3
common factors(in case of two or more numbers have common factors) = 45
GCF(42,69,15,15) x common factors =3 x 45 = 135
LCM(42,69,15,15) = ( 42 × 69 × 15 × 15 ) / 135
LCM(42,69,15,15) = 652050 / 135
LCM(42,69,15,15) = 4830
Lets's calculate GCF of 38,22,61,35
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 4830/1
Therefore the LCM of Fractions 42/38,69/22,15/61,15/35 is 4830
Factors of 38
List of positive integer factors of 38 that divides 38 without a remainder.
1,2,19,38
Factors of 22
List of positive integer factors of 22 that divides 22 without a remainder.
1,2,11,22
Factors of 61
List of positive integer factors of 61 that divides 61 without a remainder.
1,61
Factors of 35
List of positive integer factors of 35 that divides 35 without a remainder.
1,5,7,35
Greatest Common Factor
We found the factors 38,22,61,35 . The biggest common factor number is the GCF number.
So the greatest common factor 38,22,61,35 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 42/38, 69/22, 15/61, 15/35?
Answer: LCM of Numerators as per given numbers 42/38, 69/22, 15/61, 15/35 is
LCM of Numerators i.e. for 42,69,15,15 is 4830
GCF of denominators i.e. for 38,22,61,35 is 1.
Thus, LCM of Fractions is 4830.Finally, LCM of Fractions for 42/38, 69/22, 15/61, 15/35 is 4830.