Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 2/28, 9/14, 75/72, 79/490 quickly i.e. 17775 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 2/28, 9/14, 75/72, 79/490 is 17775.
LCM(2/28, 9/14, 75/72, 79/490) = 17775
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 2/28,9/14,75/72,79/490
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 2,9,75,79
Least Common Multiple of Numerators i.e. LCM of 2,9,75,79 is 35550.
GCF of Denominators means GCF of 28,14,72,490 as per the given fractions.
GCF of 28,14,72,490 is 2 as it is the largest common factor for these numbers.
Lets's calculate LCM of 2,9,75,79
3 | 2, 9, 75, 79 |
2, 3, 25, 79 |
∴ So the LCM of the given numbers is 3 x 2 x 3 x 25 x 79 = 35550
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 2,9,75,79 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(2,9,75,79) = 1
common factors(in case of two or more numbers have common factors) = 3
GCF(2,9,75,79) x common factors =1 x 3 = 3
LCM(2,9,75,79) = ( 2 × 9 × 75 × 79 ) / 3
LCM(2,9,75,79) = 106650 / 3
LCM(2,9,75,79) = 35550
Lets's calculate GCF of 28,14,72,490
2 | 28, 14, 72, 490 |
14, 7, 36, 245 |
∴ So the GCF of the given numbers is 2 = 2
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 35550/2
Therefore the LCM of Fractions 2/28,9/14,75/72,79/490 is 17775
Factors of 28
List of positive integer factors of 28 that divides 28 without a remainder.
1,2,4,7,14,28
Factors of 14
List of positive integer factors of 14 that divides 14 without a remainder.
1,2,7,14
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 490
List of positive integer factors of 490 that divides 490 without a remainder.
1,2,5,7,10,14,35,49,70,98,245,490
Greatest Common Factor
We found the factors 28,14,72,490 . The biggest common factor number is the GCF number.
So the greatest common factor 28,14,72,490 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 2/28, 9/14, 75/72, 79/490?
Answer: LCM of Numerators as per given numbers 2/28, 9/14, 75/72, 79/490 is
LCM of Numerators i.e. for 2,9,75,79 is 35550
GCF of denominators i.e. for 28,14,72,490 is 2.
Thus, LCM of Fractions is 17775.Finally, LCM of Fractions for 2/28, 9/14, 75/72, 79/490 is 17775.