Use our free GCF of Fractions Calculator tool to compute the GCF of 231/510, 990/678 i.e 33/57630 easily. The following is the detailed procedure to determine the greatest common factor of fractions 231/510, 990/678.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 231/510,990/678
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 231/510,990/678, numerators are 231,990
Denominators are 510,678
The GCF of 231,990 is 33 .
LCM of 510,678 is 57630.
The greatest common factor of 231/510,990/678 = [GCF of 231,990]/[LCM of 510,678]= 33/57630
Therefore, the GCF of 231/510,990/678 is 33/57630.
To find the highest common factor of 231,990, we have to find the factors of both numbers and list the highest common factor.
The factors of 231 are 1, 3, 7, 11, 21, 33, 77, 231
The factors of 990 are 1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
The HCF of 231,990 is 33.
Lets's calculate GCF of 231,990
3 | 231, 990 |
11 | 77, 330 |
7, 30 |
∴ So the GCF of the given numbers is 3 x 11 = 33
Now, list down the factors of 231
:1,3,7,11,21,33,77,231
Now, list down the factors of 990
:1,2,3,5,6,9,10,11,15,18,22,30,33,45,55,66,90,99,110,165,198,330,495,990
Greatest Common Factor
We found the factors 231,990 . The biggest common factor number is the GCF number.
So the greatest common factor 231,990 is 33.
Lets's calculate LCM of 510,678
2 | 510, 678 |
3 | 255, 339 |
85, 113 |
∴ So the LCM of the given numbers is 2 x 3 x 85 x 113 = 57630
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 33/57630
Therefore, the GCF of Fractions 231/510,990/678 is 33/57630
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 510,678 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(510,678) = 6
common factors(in case of two or more numbers have common factors) = 1
GCF(510,678) x common factors =6 x 1 = 6
LCM(510,678) = ( 510 × 678 ) / 6
LCM(510,678) = 345780 / 6
LCM(510,678) = 57630
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 231,990?
The HCF of 231,990 is 33
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 231/510, 990/678?
Answer: GCF of Numerators as per given numbers 231/510, 990/678 is
GCF of Numerators i.e. for 231,990 is 33
LCM of denominators i.e. for 510,678 is 57630.
Thus, GCF of Fractions is 33/57630.Finally, GCF of Fractions for 231/510, 990/678 is 33/57630.