Use our free GCF of Fractions Calculator tool to compute the GCF of 72/45, 258/40, 879/621 i.e 3/24840 easily. The following is the detailed procedure to determine the greatest common factor of fractions 72/45, 258/40, 879/621.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 72/45,258/40,879/621
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 72/45,258/40,879/621, numerators are 72,258,879
Denominators are 45,40,621
The GCF of 72,258,879 is 3 .
LCM of 45,40,621 is 24840.
The greatest common factor of 72/45,258/40,879/621 = [GCF of 72,258,879]/[LCM of 45,40,621]= 3/24840
Therefore, the GCF of 72/45,258/40,879/621 is 3/24840.
To find the highest common factor of 72,258,879, we have to find the factors of both numbers and list the highest common factor.
The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
The factors of 258 are 1, 2, 3, 6, 43, 86, 129, 258
The factors of 879 are 1, 3, 293, 879
The HCF of 72,258,879 is 3.
Lets's calculate GCF of 72,258,879
3 | 72, 258, 879 |
24, 86, 293 |
∴ So the GCF of the given numbers is 3 = 3
Now, list down the factors of 72
:1,2,3,4,6,8,9,12,18,24,36,72
Now, list down the factors of 258
:1,2,3,6,43,86,129,258
Now, list down the factors of 879
:1,3,293,879
Greatest Common Factor
We found the factors 72,258,879 . The biggest common factor number is the GCF number.
So the greatest common factor 72,258,879 is 3.
Lets's calculate LCM of 45,40,621
3 | 45, 40, 621 |
3 | 15, 40, 207 |
5 | 5, 40, 69 |
1, 8, 69 |
∴ So the LCM of the given numbers is 3 x 3 x 5 x 1 x 8 x 69 = 24840
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/24840
Therefore, the GCF of Fractions 72/45,258/40,879/621 is 3/24840
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 45,40,621 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(45,40,621) = 1
common factors(in case of two or more numbers have common factors) = 45
GCF(45,40,621) x common factors =1 x 45 = 45
LCM(45,40,621) = ( 45 × 40 × 621 ) / 45
LCM(45,40,621) = 1117800 / 45
LCM(45,40,621) = 24840
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 72,258,879?
The HCF of 72,258,879 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 72/45, 258/40, 879/621?
Answer: GCF of Numerators as per given numbers 72/45, 258/40, 879/621 is
GCF of Numerators i.e. for 72,258,879 is 3
LCM of denominators i.e. for 45,40,621 is 24840.
Thus, GCF of Fractions is 3/24840.Finally, GCF of Fractions for 72/45, 258/40, 879/621 is 3/24840.