Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 23/78, 48/63, 80/32, 56/720 quickly i.e. 38640 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 23/78, 48/63, 80/32, 56/720 is 38640.
LCM(23/78, 48/63, 80/32, 56/720) = 38640
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 23/78,48/63,80/32,56/720
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 23,48,80,56
Least Common Multiple of Numerators i.e. LCM of 23,48,80,56 is 38640.
GCF of Denominators means GCF of 78,63,32,720 as per the given fractions.
GCF of 78,63,32,720 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 23,48,80,56
2 | 23, 48, 80, 56 |
2 | 23, 24, 40, 28 |
2 | 23, 12, 20, 14 |
2 | 23, 6, 10, 7 |
23, 3, 5, 7 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 2 x 23 x 3 x 5 x 7 = 38640
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 23,48,80,56 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(23,48,80,56) = 1
common factors(in case of two or more numbers have common factors) = 128
GCF(23,48,80,56) x common factors =1 x 128 = 128
LCM(23,48,80,56) = ( 23 × 48 × 80 × 56 ) / 128
LCM(23,48,80,56) = 4945920 / 128
LCM(23,48,80,56) = 38640
Lets's calculate GCF of 78,63,32,720
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 38640/1
Therefore the LCM of Fractions 23/78,48/63,80/32,56/720 is 38640
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 63
List of positive integer factors of 63 that divides 63 without a remainder.
1,3,7,9,21,63
Factors of 32
List of positive integer factors of 32 that divides 32 without a remainder.
1,2,4,8,16,32
Factors of 720
List of positive integer factors of 720 that divides 720 without a remainder.
1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,30,36,40,45,48,60,72,80,90,120,144,180,240,360,720
Greatest Common Factor
We found the factors 78,63,32,720 . The biggest common factor number is the GCF number.
So the greatest common factor 78,63,32,720 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 23/78, 48/63, 80/32, 56/720?
Answer: LCM of Numerators as per given numbers 23/78, 48/63, 80/32, 56/720 is
LCM of Numerators i.e. for 23,48,80,56 is 38640
GCF of denominators i.e. for 78,63,32,720 is 1.
Thus, LCM of Fractions is 38640.Finally, LCM of Fractions for 23/78, 48/63, 80/32, 56/720 is 38640.