Use our free GCF of Fractions Calculator tool to compute the GCF of 500/381, 420/225 i.e 20/28575 easily. The following is the detailed procedure to determine the greatest common factor of fractions 500/381, 420/225.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 500/381,420/225
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 500/381,420/225, numerators are 500,420
Denominators are 381,225
The GCF of 500,420 is 20 .
LCM of 381,225 is 28575.
The greatest common factor of 500/381,420/225 = [GCF of 500,420]/[LCM of 381,225]= 20/28575
Therefore, the GCF of 500/381,420/225 is 20/28575.
To find the highest common factor of 500,420, we have to find the factors of both numbers and list the highest common factor.
The factors of 500 are 1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500
The factors of 420 are 1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420
The HCF of 500,420 is 20.
Lets's calculate GCF of 500,420
2 | 500, 420 |
2 | 250, 210 |
5 | 125, 105 |
25, 21 |
∴ So the GCF of the given numbers is 2 x 2 x 5 = 20
Now, list down the factors of 500
:1,2,4,5,10,20,25,50,100,125,250,500
Now, list down the factors of 420
:1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420
Greatest Common Factor
We found the factors 500,420 . The biggest common factor number is the GCF number.
So the greatest common factor 500,420 is 20.
Lets's calculate LCM of 381,225
3 | 381, 225 |
127, 75 |
∴ So the LCM of the given numbers is 3 x 127 x 75 = 28575
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 20/28575
Therefore, the GCF of Fractions 500/381,420/225 is 20/28575
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 381,225 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(381,225) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(381,225) x common factors =3 x 1 = 3
LCM(381,225) = ( 381 × 225 ) / 3
LCM(381,225) = 85725 / 3
LCM(381,225) = 28575
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 500,420?
The HCF of 500,420 is 20
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 500/381, 420/225?
Answer: GCF of Numerators as per given numbers 500/381, 420/225 is
GCF of Numerators i.e. for 500,420 is 20
LCM of denominators i.e. for 381,225 is 28575.
Thus, GCF of Fractions is 20/28575.Finally, GCF of Fractions for 500/381, 420/225 is 20/28575.