Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 7/40, 8/72, 16/88, 45/637 quickly i.e. 5040 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 7/40, 8/72, 16/88, 45/637 is 5040.
LCM(7/40, 8/72, 16/88, 45/637) = 5040
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 7/40,8/72,16/88,45/637
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 7,8,16,45
Least Common Multiple of Numerators i.e. LCM of 7,8,16,45 is 5040.
GCF of Denominators means GCF of 40,72,88,637 as per the given fractions.
GCF of 40,72,88,637 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 7,8,16,45
2 | 7, 8, 16, 45 |
2 | 7, 4, 8, 45 |
2 | 7, 2, 4, 45 |
7, 1, 2, 45 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 7 x 1 x 2 x 45 = 5040
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 7,8,16,45 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(7,8,16,45) = 1
common factors(in case of two or more numbers have common factors) = 8
GCF(7,8,16,45) x common factors =1 x 8 = 8
LCM(7,8,16,45) = ( 7 × 8 × 16 × 45 ) / 8
LCM(7,8,16,45) = 40320 / 8
LCM(7,8,16,45) = 5040
Lets's calculate GCF of 40,72,88,637
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 5040/1
Therefore the LCM of Fractions 7/40,8/72,16/88,45/637 is 5040
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 72
List of positive integer factors of 72 that divides 72 without a remainder.
1,2,3,4,6,8,9,12,18,24,36,72
Factors of 88
List of positive integer factors of 88 that divides 88 without a remainder.
1,2,4,8,11,22,44,88
Factors of 637
List of positive integer factors of 637 that divides 637 without a remainder.
1,7,13,49,91,637
Greatest Common Factor
We found the factors 40,72,88,637 . The biggest common factor number is the GCF number.
So the greatest common factor 40,72,88,637 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 7/40, 8/72, 16/88, 45/637?
Answer: LCM of Numerators as per given numbers 7/40, 8/72, 16/88, 45/637 is
LCM of Numerators i.e. for 7,8,16,45 is 5040
GCF of denominators i.e. for 40,72,88,637 is 1.
Thus, LCM of Fractions is 5040.Finally, LCM of Fractions for 7/40, 8/72, 16/88, 45/637 is 5040.