Use our free GCF of Fractions Calculator tool to compute the GCF of 405/38, 639/574 i.e 9/10906 easily. The following is the detailed procedure to determine the greatest common factor of fractions 405/38, 639/574.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 405/38,639/574
To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by
GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators
In the fractions 405/38,639/574, numerators are 405,639
Denominators are 38,574
The GCF of 405,639 is 9 .
LCM of 38,574 is 10906.
The greatest common factor of 405/38,639/574 = [GCF of 405,639]/[LCM of 38,574]= 9/10906
Therefore, the GCF of 405/38,639/574 is 9/10906.
To find the highest common factor of 405,639, we have to find the factors of both numbers and list the highest common factor.
The factors of 405 are 1, 3, 5, 9, 15, 27, 45, 81, 135, 405
The factors of 639 are 1, 3, 9, 71, 213, 639
The HCF of 405,639 is 9.
Lets's calculate GCF of 405,639
3 | 405, 639 |
3 | 135, 213 |
45, 71 |
∴ So the GCF of the given numbers is 3 x 3 = 9
Now, list down the factors of 405
:1,3,5,9,15,27,45,81,135,405
Now, list down the factors of 639
:1,3,9,71,213,639
Greatest Common Factor
We found the factors 405,639 . The biggest common factor number is the GCF number.
So the greatest common factor 405,639 is 9.
Lets's calculate LCM of 38,574
2 | 38, 574 |
19, 287 |
∴ So the LCM of the given numbers is 2 x 19 x 287 = 10906
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 9/10906
Therefore, the GCF of Fractions 405/38,639/574 is 9/10906
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 38,574 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(38,574) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(38,574) x common factors =2 x 1 = 2
LCM(38,574) = ( 38 × 574 ) / 2
LCM(38,574) = 21812 / 2
LCM(38,574) = 10906
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 405,639?
The HCF of 405,639 is 9
2. What is the GCF of a fraction?
The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.
3. How to find GCF in Fractions?
Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.
4. What is the GCF of Fractions for 405/38, 639/574?
Answer: GCF of Numerators as per given numbers 405/38, 639/574 is
GCF of Numerators i.e. for 405,639 is 9
LCM of denominators i.e. for 38,574 is 10906.
Thus, GCF of Fractions is 9/10906.Finally, GCF of Fractions for 405/38, 639/574 is 9/10906.