Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Know Least Common Multiple of fractions 1/22, 20/28, 69/74 quickly i.e. 690 the smallest number that is divisible by all numbers by taking the help of LCM of Fractions Calculator.
Least Common Multiple (LCM) of 1/22, 20/28, 69/74 is 690.
LCM(1/22, 20/28, 69/74) = 690
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given numbers are 1/22,20/28,69/74
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 1,20,69
Least Common Multiple of Numerators i.e. LCM of 1,20,69 is 1380.
GCF of Denominators means GCF of 22,28,74 as per the given fractions.
GCF of 22,28,74 is 2 as it is the largest common factor for these numbers.
Lets's calculate LCM of 1,20,69
Given numbers has no common factors except 1. So, there LCM is their product i.e 1380
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 1,20,69 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(1,20,69) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(1,20,69) x common factors =1 x 1 = 1
LCM(1,20,69) = ( 1 × 20 × 69 ) / 1
LCM(1,20,69) = 1380 / 1
LCM(1,20,69) = 1380
Lets's calculate GCF of 22,28,74
2 | 22, 28, 74 |
11, 14, 37 |
∴ So the GCF of the given numbers is 2 = 2
Thus LCM of Fractions = LCM of Numerators/GCF of Denominators = 1380/2
Therefore the LCM of Fractions 1/22,20/28,69/74 is 690
Factors of 22
List of positive integer factors of 22 that divides 22 without a remainder.
1,2,11,22
Factors of 28
List of positive integer factors of 28 that divides 28 without a remainder.
1,2,4,7,14,28
Factors of 74
List of positive integer factors of 74 that divides 74 without a remainder.
1,2,37,74
Greatest Common Factor
We found the factors 22,28,74 . The biggest common factor number is the GCF number.
So the greatest common factor 22,28,74 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 1/22, 20/28, 69/74?
Answer: LCM of Numerators as per given numbers 1/22, 20/28, 69/74 is
LCM of Numerators i.e. for 1,20,69 is 1380
GCF of denominators i.e. for 22,28,74 is 2.
Thus, LCM of Fractions is 690.Finally, LCM of Fractions for 1/22, 20/28, 69/74 is 690.