Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 84/74, 77/78, 85/49, 68/302 quickly i.e. 78540 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 84/74, 77/78, 85/49, 68/302 is 78540.
LCM(84/74, 77/78, 85/49, 68/302) = 78540
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 84/74,77/78,85/49,68/302
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 84,77,85,68
Least Common Multiple of Numerators i.e. LCM of 84,77,85,68 is 78540.
GCF of Denominators means GCF of 74,78,49,302 as per the given fractions.
GCF of 74,78,49,302 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 84,77,85,68
2 | 84, 77, 85, 68 |
2 | 42, 77, 85, 34 |
7 | 21, 77, 85, 17 |
17 | 3, 11, 85, 17 |
3, 11, 5, 1 |
∴ So the LCM of the given numbers is 2 x 2 x 7 x 17 x 3 x 11 x 5 x 1 = 78540
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 84,77,85,68 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(84,77,85,68) = 1
common factors(in case of two or more numbers have common factors) = 476
GCF(84,77,85,68) x common factors =1 x 476 = 476
LCM(84,77,85,68) = ( 84 × 77 × 85 × 68 ) / 476
LCM(84,77,85,68) = 37385040 / 476
LCM(84,77,85,68) = 78540
Lets's calculate GCF of 74,78,49,302
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 78540/1
Therefore the LCM of Fractions 84/74,77/78,85/49,68/302 is 78540
Factors of 74
List of positive integer factors of 74 that divides 74 without a remainder.
1,2,37,74
Factors of 78
List of positive integer factors of 78 that divides 78 without a remainder.
1,2,3,6,13,26,39,78
Factors of 49
List of positive integer factors of 49 that divides 49 without a remainder.
1,7,49
Factors of 302
List of positive integer factors of 302 that divides 302 without a remainder.
1,2,151,302
Greatest Common Factor
We found the factors 74,78,49,302 . The biggest common factor number is the GCF number.
So the greatest common factor 74,78,49,302 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 84/74, 77/78, 85/49, 68/302?
Answer: LCM of Numerators as per given numbers 84/74, 77/78, 85/49, 68/302 is
LCM of Numerators i.e. for 84,77,85,68 is 78540
GCF of denominators i.e. for 74,78,49,302 is 1.
Thus, LCM of Fractions is 78540.Finally, LCM of Fractions for 84/74, 77/78, 85/49, 68/302 is 78540.