Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 840/287, 216/658, 474/399 quickly i.e. 85320 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 840/287, 216/658, 474/399 is 85320.
LCM(840/287, 216/658, 474/399) = 85320
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 840/287,216/658,474/399
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 840,216,474
Least Common Multiple of Numerators i.e. LCM of 840,216,474 is 597240.
GCF of Denominators means GCF of 287,658,399 as per the given fractions.
GCF of 287,658,399 is 7 as it is the largest common factor for these numbers.
Lets's calculate LCM of 840,216,474
2 | 840, 216, 474 |
2 | 420, 108, 237 |
2 | 210, 54, 237 |
3 | 105, 27, 237 |
35, 9, 79 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 3 x 35 x 9 x 79 = 597240
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 840,216,474 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(840,216,474) = 6
common factors(in case of two or more numbers have common factors) = 24
GCF(840,216,474) x common factors =6 x 24 = 144
LCM(840,216,474) = ( 840 × 216 × 474 ) / 144
LCM(840,216,474) = 86002560 / 144
LCM(840,216,474) = 597240
Lets's calculate GCF of 287,658,399
7 | 287, 658, 399 |
41, 94, 57 |
∴ So the GCF of the given numbers is 7 = 7
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 597240/7
Therefore the LCM of Fractions 840/287,216/658,474/399 is 85320
Factors of 287
List of positive integer factors of 287 that divides 287 without a remainder.
1,7,41,287
Factors of 658
List of positive integer factors of 658 that divides 658 without a remainder.
1,2,7,14,47,94,329,658
Factors of 399
List of positive integer factors of 399 that divides 399 without a remainder.
1,3,7,19,21,57,133,399
Greatest Common Factor
We found the factors 287,658,399 . The biggest common factor number is the GCF number.
So the greatest common factor 287,658,399 is 7.
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 840/287, 216/658, 474/399?
Answer: LCM of Numerators as per given numbers 840/287, 216/658, 474/399 is
LCM of Numerators i.e. for 840,216,474 is 597240
GCF of denominators i.e. for 287,658,399 is 7.
Thus, LCM of Fractions is 85320.Finally, LCM of Fractions for 840/287, 216/658, 474/399 is 85320.