Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 68/30, 37/40, 400/78 quickly i.e. 125800 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 68/30, 37/40, 400/78 is 125800.
LCM(68/30, 37/40, 400/78) = 125800
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 68/30,37/40,400/78
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 68,37,400
Least Common Multiple of Numerators i.e. LCM of 68,37,400 is 251600.
GCF of Denominators means GCF of 30,40,78 as per the given fractions.
GCF of 30,40,78 is 2 as it is the largest common factor for these numbers.
Lets's calculate LCM of 68,37,400
2 | 68, 37, 400 |
2 | 34, 37, 200 |
17, 37, 100 |
∴ So the LCM of the given numbers is 2 x 2 x 17 x 37 x 100 = 251600
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 68,37,400 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(68,37,400) = 1
common factors(in case of two or more numbers have common factors) = 4
GCF(68,37,400) x common factors =1 x 4 = 4
LCM(68,37,400) = ( 68 × 37 × 400 ) / 4
LCM(68,37,400) = 1006400 / 4
LCM(68,37,400) = 251600
Lets's calculate GCF of 30,40,78
2 | 30, 40, 78 |
15, 20, 39 |
∴ So the GCF of the given numbers is 2 = 2
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 251600/2
Therefore the LCM of Fractions 68/30,37/40,400/78 is 125800
Factors of 30
List of positive integer factors of 30 that divides 30 without a remainder.
1,2,3,5,6,10,15,30
Factors of 40
List of positive integer factors of 40 that divides 40 without a remainder.
1,2,4,5,8,10,20,40
Factors of 78
List of positive integer factors of 78 that divides 78 without a remainder.
1,2,3,6,13,26,39,78
Greatest Common Factor
We found the factors 30,40,78 . The biggest common factor number is the GCF number.
So the greatest common factor 30,40,78 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 68/30, 37/40, 400/78?
Answer: LCM of Numerators as per given numbers 68/30, 37/40, 400/78 is
LCM of Numerators i.e. for 68,37,400 is 251600
GCF of denominators i.e. for 30,40,78 is 2.
Thus, LCM of Fractions is 125800.Finally, LCM of Fractions for 68/30, 37/40, 400/78 is 125800.