Use our free GCF of Fractions Calculator tool to compute the GCF of 803/390, 638/213 i.e 11/27690 easily. The following is the detailed procedure to determine the greatest common factor of fractions 803/390, 638/213.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 803/390,638/213
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 803/390,638/213, numerators are 803,638
Denominators are 390,213
The GCF of 803,638 is 11 .
LCM of 390,213 is 27690.
The greatest common factor of 803/390,638/213 = [GCF of 803,638]/[LCM of 390,213]= 11/27690
Therefore, the GCF of 803/390,638/213 is 11/27690.
To find the highest common factor of 803,638, we have to find the factors of both numbers and list the highest common factor.
The factors of 803 are 1, 11, 73, 803
The factors of 638 are 1, 2, 11, 22, 29, 58, 319, 638
The HCF of 803,638 is 11.
Lets's calculate GCF of 803,638
11 | 803, 638 |
73, 58 |
∴ So the GCF of the given numbers is 11 = 11
Now, list down the factors of 803
:1,11,73,803
Now, list down the factors of 638
:1,2,11,22,29,58,319,638
Greatest Common Factor
We found the factors 803,638 . The biggest common factor number is the GCF number.
So the greatest common factor 803,638 is 11.
Lets's calculate LCM of 390,213
3 | 390, 213 |
130, 71 |
∴ So the LCM of the given numbers is 3 x 130 x 71 = 27690
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 11/27690
Therefore, the GCF of Fractions 803/390,638/213 is 11/27690
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 390,213 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(390,213) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(390,213) x common factors =3 x 1 = 3
LCM(390,213) = ( 390 × 213 ) / 3
LCM(390,213) = 83070 / 3
LCM(390,213) = 27690
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 803,638?
The HCF of 803,638 is 11
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 803/390, 638/213?
Answer: GCF of Numerators as per given numbers 803/390, 638/213 is
GCF of Numerators i.e. for 803,638 is 11
LCM of denominators i.e. for 390,213 is 27690.
Thus, GCF of Fractions is 11/27690.Finally, GCF of Fractions for 803/390, 638/213 is 11/27690.