Use our free GCF of Fractions Calculator tool to compute the GCF of 108/985, 870/865 i.e 6/170405 easily. The following is the detailed procedure to determine the greatest common factor of fractions 108/985, 870/865.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 108/985,870/865
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 108/985,870/865, numerators are 108,870
Denominators are 985,865
The GCF of 108,870 is 6 .
LCM of 985,865 is 170405.
The greatest common factor of 108/985,870/865 = [GCF of 108,870]/[LCM of 985,865]= 6/170405
Therefore, the GCF of 108/985,870/865 is 6/170405.
To find the highest common factor of 108,870, we have to find the factors of both numbers and list the highest common factor.
The factors of 108 are 1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
The factors of 870 are 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870
The HCF of 108,870 is 6.
Lets's calculate GCF of 108,870
| 2 | 108, 870 |
| 3 | 54, 435 |
| 18, 145 |
∴ So the GCF of the given numbers is 2 x 3 = 6
Now, list down the factors of 108
:1,2,3,4,6,9,12,18,27,36,54,108
Now, list down the factors of 870
:1,2,3,5,6,10,15,29,30,58,87,145,174,290,435,870
Greatest Common Factor
We found the factors 108,870 . The biggest common factor number is the GCF number.
So the greatest common factor 108,870 is 6.
Lets's calculate LCM of 985,865
| 5 | 985, 865 |
| 197, 173 |
∴ So the LCM of the given numbers is 5 x 197 x 173 = 170405
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 6/170405
Therefore, the GCF of Fractions 108/985,870/865 is 6/170405
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 985,865 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(985,865) = 5
common factors(in case of two or more numbers have common factors) = 1
GCF(985,865) x common factors =5 x 1 = 5
LCM(985,865) = ( 985 × 865 ) / 5
LCM(985,865) = 852025 / 5
LCM(985,865) = 170405
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 108,870?
The HCF of 108,870 is 6
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 108/985, 870/865?
Answer: GCF of Numerators as per given numbers 108/985, 870/865 is
GCF of Numerators i.e. for 108,870 is 6
LCM of denominators i.e. for 985,865 is 170405.
Thus, GCF of Fractions is 6/170405.Finally, GCF of Fractions for 108/985, 870/865 is 6/170405.