Use our free GCF of Fractions Calculator tool to compute the GCF of 7/81, 8/27, 3/20, 43/625 i.e 1/202500 easily. The following is the detailed procedure to determine the greatest common factor of fractions 7/81, 8/27, 3/20, 43/625.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 7/81,8/27,3/20,43/625
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 7/81,8/27,3/20,43/625, numerators are 7,8,3,43
Denominators are 81,27,20,625
The GCF of 7,8,3,43 is 1 .
LCM of 81,27,20,625 is 202500.
The greatest common factor of 7/81,8/27,3/20,43/625 = [GCF of 7,8,3,43]/[LCM of 81,27,20,625]= 1/202500
Therefore, the GCF of 7/81,8/27,3/20,43/625 is 1/202500.
To find the highest common factor of 7,8,3,43, we have to find the factors of both numbers and list the highest common factor.
The factors of 7 are 1, 7
The factors of 8 are 1, 2, 4, 8
The factors of 3 are 1, 3
The factors of 43 are 1, 43
The HCF of 7,8,3,43 is 1.
Lets's calculate GCF of 7,8,3,43
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 7
:1,7
Now, list down the factors of 8
:1,2,4,8
Now, list down the factors of 3
:1,3
Now, list down the factors of 43
:1,43
Greatest Common Factor
We found the factors 7,8,3,43 . The biggest common factor number is the GCF number.
So the greatest common factor 7,8,3,43 is 1.
Lets's calculate LCM of 81,27,20,625
3 | 81, 27, 20, 625 |
3 | 27, 9, 20, 625 |
3 | 3, 9, 20, 625 |
5 | 1, 3, 20, 625 |
1, 3, 4, 125 |
∴ So the LCM of the given numbers is 3 x 3 x 3 x 5 x 1 x 3 x 4 x 125 = 202500
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/202500
Therefore, the GCF of Fractions 7/81,8/27,3/20,43/625 is 1/202500
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 81,27,20,625 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,27,20,625) = 1
common factors(in case of two or more numbers have common factors) = 135
GCF(81,27,20,625) x common factors =1 x 135 = 135
LCM(81,27,20,625) = ( 81 × 27 × 20 × 625 ) / 135
LCM(81,27,20,625) = 27337500 / 135
LCM(81,27,20,625) = 202500
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 7,8,3,43?
The HCF of 7,8,3,43 is 1
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 7/81, 8/27, 3/20, 43/625?
Answer: GCF of Numerators as per given numbers 7/81, 8/27, 3/20, 43/625 is
GCF of Numerators i.e. for 7,8,3,43 is 1
LCM of denominators i.e. for 81,27,20,625 is 202500.
Thus, GCF of Fractions is 1/202500.Finally, GCF of Fractions for 7/81, 8/27, 3/20, 43/625 is 1/202500.