Use our free GCF of Fractions Calculator tool to compute the GCF of 217/221, 945/865 i.e 7/191165 easily. The following is the detailed procedure to determine the greatest common factor of fractions 217/221, 945/865.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 217/221,945/865
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 217/221,945/865, numerators are 217,945
Denominators are 221,865
The GCF of 217,945 is 7 .
LCM of 221,865 is 191165.
The greatest common factor of 217/221,945/865 = [GCF of 217,945]/[LCM of 221,865]= 7/191165
Therefore, the GCF of 217/221,945/865 is 7/191165.
To find the highest common factor of 217,945, we have to find the factors of both numbers and list the highest common factor.
The factors of 217 are 1, 7, 31, 217
The factors of 945 are 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
The HCF of 217,945 is 7.
Lets's calculate GCF of 217,945
7 | 217, 945 |
31, 135 |
∴ So the GCF of the given numbers is 7 = 7
Now, list down the factors of 217
:1,7,31,217
Now, list down the factors of 945
:1,3,5,7,9,15,21,27,35,45,63,105,135,189,315,945
Greatest Common Factor
We found the factors 217,945 . The biggest common factor number is the GCF number.
So the greatest common factor 217,945 is 7.
Lets's calculate LCM of 221,865
Given numbers has no common factors except 1. So, there LCM is their product i.e 191165
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 7/191165
Therefore, the GCF of Fractions 217/221,945/865 is 7/191165
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 221,865 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(221,865) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(221,865) x common factors =1 x 1 = 1
LCM(221,865) = ( 221 × 865 ) / 1
LCM(221,865) = 191165 / 1
LCM(221,865) = 191165
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 217,945?
The HCF of 217,945 is 7
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 217/221, 945/865?
Answer: GCF of Numerators as per given numbers 217/221, 945/865 is
GCF of Numerators i.e. for 217,945 is 7
LCM of denominators i.e. for 221,865 is 191165.
Thus, GCF of Fractions is 7/191165.Finally, GCF of Fractions for 217/221, 945/865 is 7/191165.