Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 7/42, 6/97, 24/91, 30/865 quickly i.e. 840 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 7/42, 6/97, 24/91, 30/865 is 840.
LCM(7/42, 6/97, 24/91, 30/865) = 840
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 7/42,6/97,24/91,30/865
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 7,6,24,30
Least Common Multiple of Numerators i.e. LCM of 7,6,24,30 is 840.
GCF of Denominators means GCF of 42,97,91,865 as per the given fractions.
GCF of 42,97,91,865 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 7,6,24,30
2 | 7, 6, 24, 30 |
3 | 7, 3, 12, 15 |
7, 1, 4, 5 |
∴ So the LCM of the given numbers is 2 x 3 x 7 x 1 x 4 x 5 = 840
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 7,6,24,30 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(7,6,24,30) = 1
common factors(in case of two or more numbers have common factors) = 36
GCF(7,6,24,30) x common factors =1 x 36 = 36
LCM(7,6,24,30) = ( 7 × 6 × 24 × 30 ) / 36
LCM(7,6,24,30) = 30240 / 36
LCM(7,6,24,30) = 840
Lets's calculate GCF of 42,97,91,865
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 840/1
Therefore the LCM of Fractions 7/42,6/97,24/91,30/865 is 840
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 97
List of positive integer factors of 97 that divides 97 without a remainder.
1,97
Factors of 91
List of positive integer factors of 91 that divides 91 without a remainder.
1,7,13,91
Factors of 865
List of positive integer factors of 865 that divides 865 without a remainder.
1,5,173,865
Greatest Common Factor
We found the factors 42,97,91,865 . The biggest common factor number is the GCF number.
So the greatest common factor 42,97,91,865 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 7/42, 6/97, 24/91, 30/865?
Answer: LCM of Numerators as per given numbers 7/42, 6/97, 24/91, 30/865 is
LCM of Numerators i.e. for 7,6,24,30 is 840
GCF of denominators i.e. for 42,97,91,865 is 1.
Thus, LCM of Fractions is 840.Finally, LCM of Fractions for 7/42, 6/97, 24/91, 30/865 is 840.