Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 7/890, 28/636, 45/220 quickly i.e. 630 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 7/890, 28/636, 45/220 is 630.
LCM(7/890, 28/636, 45/220) = 630
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 7/890,28/636,45/220
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 7,28,45
Least Common Multiple of Numerators i.e. LCM of 7,28,45 is 1260.
GCF of Denominators means GCF of 890,636,220 as per the given fractions.
GCF of 890,636,220 is 2 as it is the largest common factor for these numbers.
Lets's calculate LCM of 7,28,45
7 | 7, 28, 45 |
1, 4, 45 |
∴ So the LCM of the given numbers is 7 x 1 x 4 x 45 = 1260
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 7,28,45 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(7,28,45) = 1
common factors(in case of two or more numbers have common factors) = 7
GCF(7,28,45) x common factors =1 x 7 = 7
LCM(7,28,45) = ( 7 × 28 × 45 ) / 7
LCM(7,28,45) = 8820 / 7
LCM(7,28,45) = 1260
Lets's calculate GCF of 890,636,220
2 | 890, 636, 220 |
445, 318, 110 |
∴ So the GCF of the given numbers is 2 = 2
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1260/2
Therefore the LCM of Fractions 7/890,28/636,45/220 is 630
Factors of 890
List of positive integer factors of 890 that divides 890 without a remainder.
1,2,5,10,89,178,445,890
Factors of 636
List of positive integer factors of 636 that divides 636 without a remainder.
1,2,3,4,6,12,53,106,159,212,318,636
Factors of 220
List of positive integer factors of 220 that divides 220 without a remainder.
1,2,4,5,10,11,20,22,44,55,110,220
Greatest Common Factor
We found the factors 890,636,220 . The biggest common factor number is the GCF number.
So the greatest common factor 890,636,220 is 2.
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 7/890, 28/636, 45/220?
Answer: LCM of Numerators as per given numbers 7/890, 28/636, 45/220 is
LCM of Numerators i.e. for 7,28,45 is 1260
GCF of denominators i.e. for 890,636,220 is 2.
Thus, LCM of Fractions is 630.Finally, LCM of Fractions for 7/890, 28/636, 45/220 is 630.