Use our free GCF of Fractions Calculator tool to compute the GCF of 21/445, 54/528, 873/780 i.e 3/3054480 easily. The following is the detailed procedure to determine the greatest common factor of fractions 21/445, 54/528, 873/780.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 21/445,54/528,873/780
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 21/445,54/528,873/780, numerators are 21,54,873
Denominators are 445,528,780
The GCF of 21,54,873 is 3 .
LCM of 445,528,780 is 3054480.
The greatest common factor of 21/445,54/528,873/780 = [GCF of 21,54,873]/[LCM of 445,528,780]= 3/3054480
Therefore, the GCF of 21/445,54/528,873/780 is 3/3054480.
To find the highest common factor of 21,54,873, we have to find the factors of both numbers and list the highest common factor.
The factors of 21 are 1, 3, 7, 21
The factors of 54 are 1, 2, 3, 6, 9, 18, 27, 54
The factors of 873 are 1, 3, 9, 97, 291, 873
The HCF of 21,54,873 is 3.
Lets's calculate GCF of 21,54,873
3 | 21, 54, 873 |
7, 18, 291 |
∴ So the GCF of the given numbers is 3 = 3
Now, list down the factors of 21
:1,3,7,21
Now, list down the factors of 54
:1,2,3,6,9,18,27,54
Now, list down the factors of 873
:1,3,9,97,291,873
Greatest Common Factor
We found the factors 21,54,873 . The biggest common factor number is the GCF number.
So the greatest common factor 21,54,873 is 3.
Lets's calculate LCM of 445,528,780
2 | 445, 528, 780 |
2 | 445, 264, 390 |
3 | 445, 132, 195 |
5 | 445, 44, 65 |
89, 44, 13 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 5 x 89 x 44 x 13 = 3054480
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/3054480
Therefore, the GCF of Fractions 21/445,54/528,873/780 is 3/3054480
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 445,528,780 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(445,528,780) = 1
common factors(in case of two or more numbers have common factors) = 60
GCF(445,528,780) x common factors =1 x 60 = 60
LCM(445,528,780) = ( 445 × 528 × 780 ) / 60
LCM(445,528,780) = 183268800 / 60
LCM(445,528,780) = 3054480
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 21,54,873?
The HCF of 21,54,873 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 21/445, 54/528, 873/780?
Answer: GCF of Numerators as per given numbers 21/445, 54/528, 873/780 is
GCF of Numerators i.e. for 21,54,873 is 3
LCM of denominators i.e. for 445,528,780 is 3054480.
Thus, GCF of Fractions is 3/3054480.Finally, GCF of Fractions for 21/445, 54/528, 873/780 is 3/3054480.