Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 89/80, 81/96, 62/70, 91/420 quickly i.e. 20336589 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 89/80, 81/96, 62/70, 91/420 is 20336589.
LCM(89/80, 81/96, 62/70, 91/420) = 20336589
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 89/80,81/96,62/70,91/420
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 89,81,62,91
Least Common Multiple of Numerators i.e. LCM of 89,81,62,91 is 40673178.
GCF of Denominators means GCF of 80,96,70,420 as per the given fractions.
GCF of 80,96,70,420 is 2 as it is the largest common factor for these numbers.
Lets's calculate LCM of 89,81,62,91
Given numbers has no common factors except 1. So, there LCM is their product i.e 40673178
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 89,81,62,91 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(89,81,62,91) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(89,81,62,91) x common factors =1 x 1 = 1
LCM(89,81,62,91) = ( 89 × 81 × 62 × 91 ) / 1
LCM(89,81,62,91) = 40673178 / 1
LCM(89,81,62,91) = 40673178
Lets's calculate GCF of 80,96,70,420
2 | 80, 96, 70, 420 |
40, 48, 35, 210 |
∴ So the GCF of the given numbers is 2 = 2
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 40673178/2
Therefore the LCM of Fractions 89/80,81/96,62/70,91/420 is 20336589
Factors of 80
List of positive integer factors of 80 that divides 80 without a remainder.
1,2,4,5,8,10,16,20,40,80
Factors of 96
List of positive integer factors of 96 that divides 96 without a remainder.
1,2,3,4,6,8,12,16,24,32,48,96
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 420
List of positive integer factors of 420 that divides 420 without a remainder.
1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420
Greatest Common Factor
We found the factors 80,96,70,420 . The biggest common factor number is the GCF number.
So the greatest common factor 80,96,70,420 is 2.
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 89/80, 81/96, 62/70, 91/420?
Answer: LCM of Numerators as per given numbers 89/80, 81/96, 62/70, 91/420 is
LCM of Numerators i.e. for 89,81,62,91 is 40673178
GCF of denominators i.e. for 80,96,70,420 is 2.
Thus, LCM of Fractions is 20336589.Finally, LCM of Fractions for 89/80, 81/96, 62/70, 91/420 is 20336589.