GCF of 663/465, 257/225
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 663/465, 257/225 i.e 1/6975 easily. The following is the detailed procedure to determine the greatest common factor of fractions 663/465, 257/225.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 663/465,257/225?
Given fractions are 663/465,257/225
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 663/465,257/225, numerators are 663,257
Denominators are 465,225
The GCF of 663,257 is 1 .
LCM of 465,225 is 6975.
The greatest common factor of 663/465,257/225 = [GCF of 663,257]/[LCM of 465,225]= 1/6975
Therefore, the GCF of 663/465,257/225 is 1/6975.
To find the highest common factor of 663,257, we have to find the factors of both numbers and list the highest common factor.
The factors of 663 are 1, 3, 13, 17, 39, 51, 221, 663
The factors of 257 are 1, 257
The HCF of 663,257 is 1.
Lets's calculate GCF of 663,257
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 663,257 By Matching Biggest Common Factor Method
Now, list down the factors of 663
:1,3,13,17,39,51,221,663
Now, list down the factors of 257
:1,257
Greatest Common Factor
We found the factors 663,257 . The biggest common factor number is the GCF number.
So the greatest common factor 663,257 is 1.
Lets's calculate LCM of 465,225
| 3 | 465, 225 |
| 5 | 155, 75 |
| 31, 15 |
∴ So the LCM of the given numbers is 3 x 5 x 31 x 15 = 6975
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/6975
Therefore, the GCF of Fractions 663/465,257/225 is 1/6975
Least Common Multiple of 465,225 with GCF Formula
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 465,225 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(465,225) = 15
common factors(in case of two or more numbers have common factors) = 1
GCF(465,225) x common factors =15 x 1 = 15
LCM(465,225) = ( 465 × 225 ) / 15
LCM(465,225) = 104625 / 15
LCM(465,225) = 6975
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 663/465, 257/225
1. What is the HCF of 663,257?
The HCF of 663,257 is 1
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 663/465, 257/225?
Answer: GCF of Numerators as per given numbers 663/465, 257/225 is
GCF of Numerators i.e. for 663,257 is 1
LCM of denominators i.e. for 465,225 is 6975.
Thus, GCF of Fractions is 1/6975.Finally, GCF of Fractions for 663/465, 257/225 is 1/6975.