Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 78/90, 32/14, 52/39, 71/990 quickly i.e. 88608 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 78/90, 32/14, 52/39, 71/990 is 88608.
LCM(78/90, 32/14, 52/39, 71/990) = 88608
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 78/90,32/14,52/39,71/990
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 78,32,52,71
Least Common Multiple of Numerators i.e. LCM of 78,32,52,71 is 88608.
GCF of Denominators means GCF of 90,14,39,990 as per the given fractions.
GCF of 90,14,39,990 is 1 as it is the largest common factor for these numbers.
Lets's calculate LCM of 78,32,52,71
2 | 78, 32, 52, 71 |
2 | 39, 16, 26, 71 |
13 | 39, 8, 13, 71 |
3, 8, 1, 71 |
∴ So the LCM of the given numbers is 2 x 2 x 13 x 3 x 8 x 1 x 71 = 88608
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 78,32,52,71 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(78,32,52,71) = 1
common factors(in case of two or more numbers have common factors) = 104
GCF(78,32,52,71) x common factors =1 x 104 = 104
LCM(78,32,52,71) = ( 78 × 32 × 52 × 71 ) / 104
LCM(78,32,52,71) = 9215232 / 104
LCM(78,32,52,71) = 88608
Lets's calculate GCF of 90,14,39,990
∴ So GCF of numbers is 1 because of no common factors present between them.
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 88608/1
Therefore the LCM of Fractions 78/90,32/14,52/39,71/990 is 88608
Factors of 90
List of positive integer factors of 90 that divides 90 without a remainder.
1,2,3,5,6,9,10,15,18,30,45,90
Factors of 14
List of positive integer factors of 14 that divides 14 without a remainder.
1,2,7,14
Factors of 39
List of positive integer factors of 39 that divides 39 without a remainder.
1,3,13,39
Factors of 990
List of positive integer factors of 990 that divides 990 without a remainder.
1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990
Greatest Common Factor
We found the factors 90,14,39,990 . The biggest common factor number is the GCF number.
So the greatest common factor 90,14,39,990 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 78/90, 32/14, 52/39, 71/990?
Answer: LCM of Numerators as per given numbers 78/90, 32/14, 52/39, 71/990 is
LCM of Numerators i.e. for 78,32,52,71 is 88608
GCF of denominators i.e. for 90,14,39,990 is 1.
Thus, LCM of Fractions is 88608.Finally, LCM of Fractions for 78/90, 32/14, 52/39, 71/990 is 88608.