Use our free GCF of Fractions Calculator tool to compute the GCF of 663/338, 240/816 i.e 3/137904 easily. The following is the detailed procedure to determine the greatest common factor of fractions 663/338, 240/816.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 663/338,240/816
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 663/338,240/816, numerators are 663,240
Denominators are 338,816
The GCF of 663,240 is 3 .
LCM of 338,816 is 137904.
The greatest common factor of 663/338,240/816 = [GCF of 663,240]/[LCM of 338,816]= 3/137904
Therefore, the GCF of 663/338,240/816 is 3/137904.
To find the highest common factor of 663,240, 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 240 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 240
The HCF of 663,240 is 3.
Lets's calculate GCF of 663,240
3 | 663, 240 |
221, 80 |
∴ So the GCF of the given numbers is 3 = 3
Now, list down the factors of 663
:1,3,13,17,39,51,221,663
Now, list down the factors of 240
:1,2,3,4,5,6,8,10,12,15,16,20,24,30,40,48,60,80,120,240
Greatest Common Factor
We found the factors 663,240 . The biggest common factor number is the GCF number.
So the greatest common factor 663,240 is 3.
Lets's calculate LCM of 338,816
2 | 338, 816 |
169, 408 |
∴ So the LCM of the given numbers is 2 x 169 x 408 = 137904
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/137904
Therefore, the GCF of Fractions 663/338,240/816 is 3/137904
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 338,816 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(338,816) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(338,816) x common factors =2 x 1 = 2
LCM(338,816) = ( 338 × 816 ) / 2
LCM(338,816) = 275808 / 2
LCM(338,816) = 137904
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 663,240?
The HCF of 663,240 is 3
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 663/338, 240/816?
Answer: GCF of Numerators as per given numbers 663/338, 240/816 is
GCF of Numerators i.e. for 663,240 is 3
LCM of denominators i.e. for 338,816 is 137904.
Thus, GCF of Fractions is 3/137904.Finally, GCF of Fractions for 663/338, 240/816 is 3/137904.