Use our free GCF of Fractions Calculator tool to compute the GCF of 860/80, 720/865 i.e 20/13840 easily. The following is the detailed procedure to determine the greatest common factor of fractions 860/80, 720/865.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 860/80,720/865
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 860/80,720/865, numerators are 860,720
Denominators are 80,865
The GCF of 860,720 is 20 .
LCM of 80,865 is 13840.
The greatest common factor of 860/80,720/865 = [GCF of 860,720]/[LCM of 80,865]= 20/13840
Therefore, the GCF of 860/80,720/865 is 20/13840.
To find the highest common factor of 860,720, we have to find the factors of both numbers and list the highest common factor.
The factors of 860 are 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860
The factors of 720 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
The HCF of 860,720 is 20.
Lets's calculate GCF of 860,720
2 | 860, 720 |
2 | 430, 360 |
5 | 215, 180 |
43, 36 |
∴ So the GCF of the given numbers is 2 x 2 x 5 = 20
Now, list down the factors of 860
:1,2,4,5,10,20,43,86,172,215,430,860
Now, list down the factors of 720
:1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,30,36,40,45,48,60,72,80,90,120,144,180,240,360,720
Greatest Common Factor
We found the factors 860,720 . The biggest common factor number is the GCF number.
So the greatest common factor 860,720 is 20.
Lets's calculate LCM of 80,865
5 | 80, 865 |
16, 173 |
∴ So the LCM of the given numbers is 5 x 16 x 173 = 13840
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 20/13840
Therefore, the GCF of Fractions 860/80,720/865 is 20/13840
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 80,865 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(80,865) = 5
common factors(in case of two or more numbers have common factors) = 1
GCF(80,865) x common factors =5 x 1 = 5
LCM(80,865) = ( 80 × 865 ) / 5
LCM(80,865) = 69200 / 5
LCM(80,865) = 13840
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 860,720?
The HCF of 860,720 is 20
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 860/80, 720/865?
Answer: GCF of Numerators as per given numbers 860/80, 720/865 is
GCF of Numerators i.e. for 860,720 is 20
LCM of denominators i.e. for 80,865 is 13840.
Thus, GCF of Fractions is 20/13840.Finally, GCF of Fractions for 860/80, 720/865 is 20/13840.