Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 71/63, 55/50, 90/71, 71/138 quickly i.e. 70290 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 71/63, 55/50, 90/71, 71/138 is 70290.
LCM(71/63, 55/50, 90/71, 71/138) = 70290
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 71/63,55/50,90/71,71/138
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 71,55,90,71
Least Common Multiple of Numerators i.e. LCM of 71,55,90,71 is 70290.
GCF of Denominators means GCF of 63,50,71,138 as per the given fractions.
GCF of 63,50,71,138 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 71,55,90,71
5 | 71, 55, 90, 71 |
71 | 71, 11, 18, 71 |
1, 11, 18, 1 |
∴ So the LCM of the given numbers is 5 x 71 x 1 x 11 x 18 x 1 = 70290
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 71,55,90,71 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(71,55,90,71) = 1
common factors(in case of two or more numbers have common factors) = 355
GCF(71,55,90,71) x common factors =1 x 355 = 355
LCM(71,55,90,71) = ( 71 × 55 × 90 × 71 ) / 355
LCM(71,55,90,71) = 24952950 / 355
LCM(71,55,90,71) = 70290
Lets's calculate GCF of 63,50,71,138
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 70290/1
Therefore the LCM of Fractions 71/63,55/50,90/71,71/138 is 70290
Factors of 63
List of positive integer factors of 63 that divides 63 without a remainder.
1,3,7,9,21,63
Factors of 50
List of positive integer factors of 50 that divides 50 without a remainder.
1,2,5,10,25,50
Factors of 71
List of positive integer factors of 71 that divides 71 without a remainder.
1,71
Factors of 138
List of positive integer factors of 138 that divides 138 without a remainder.
1,2,3,6,23,46,69,138
Greatest Common Factor
We found the factors 63,50,71,138 . The biggest common factor number is the GCF number.
So the greatest common factor 63,50,71,138 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 71/63, 55/50, 90/71, 71/138?
Answer: LCM of Numerators as per given numbers 71/63, 55/50, 90/71, 71/138 is
LCM of Numerators i.e. for 71,55,90,71 is 70290
GCF of denominators i.e. for 63,50,71,138 is 1.
Thus, LCM of Fractions is 70290.Finally, LCM of Fractions for 71/63, 55/50, 90/71, 71/138 is 70290.