Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 30/70, 19/61, 30/14, 85/671 quickly i.e. 9690 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 30/70, 19/61, 30/14, 85/671 is 9690.
LCM(30/70, 19/61, 30/14, 85/671) = 9690
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 30/70,19/61,30/14,85/671
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 30,19,30,85
Least Common Multiple of Numerators i.e. LCM of 30,19,30,85 is 9690.
GCF of Denominators means GCF of 70,61,14,671 as per the given fractions.
GCF of 70,61,14,671 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 30,19,30,85
2 | 30, 19, 30, 85 |
3 | 15, 19, 15, 85 |
5 | 5, 19, 5, 85 |
1, 19, 1, 17 |
∴ So the LCM of the given numbers is 2 x 3 x 5 x 1 x 19 x 1 x 17 = 9690
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 30,19,30,85 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(30,19,30,85) = 1
common factors(in case of two or more numbers have common factors) = 150
GCF(30,19,30,85) x common factors =1 x 150 = 150
LCM(30,19,30,85) = ( 30 × 19 × 30 × 85 ) / 150
LCM(30,19,30,85) = 1453500 / 150
LCM(30,19,30,85) = 9690
Lets's calculate GCF of 70,61,14,671
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 9690/1
Therefore the LCM of Fractions 30/70,19/61,30/14,85/671 is 9690
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 14
List of positive integer factors of 14 that divides 14 without a remainder.
1,2,7,14
Factors of 671
List of positive integer factors of 671 that divides 671 without a remainder.
1,11,61,671
Greatest Common Factor
We found the factors 70,61,14,671 . The biggest common factor number is the GCF number.
So the greatest common factor 70,61,14,671 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 30/70, 19/61, 30/14, 85/671?
Answer: LCM of Numerators as per given numbers 30/70, 19/61, 30/14, 85/671 is
LCM of Numerators i.e. for 30,19,30,85 is 9690
GCF of denominators i.e. for 70,61,14,671 is 1.
Thus, LCM of Fractions is 9690.Finally, LCM of Fractions for 30/70, 19/61, 30/14, 85/671 is 9690.