Use our free GCF of Fractions Calculator tool to compute the GCF of 754/21, 395/54, 945/28 i.e 1/756 easily. The following is the detailed procedure to determine the greatest common factor of fractions 754/21, 395/54, 945/28.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 754/21,395/54,945/28
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 754/21,395/54,945/28, numerators are 754,395,945
Denominators are 21,54,28
The GCF of 754,395,945 is 1 .
LCM of 21,54,28 is 756.
The greatest common factor of 754/21,395/54,945/28 = [GCF of 754,395,945]/[LCM of 21,54,28]= 1/756
Therefore, the GCF of 754/21,395/54,945/28 is 1/756.
To find the highest common factor of 754,395,945, we have to find the factors of both numbers and list the highest common factor.
The factors of 754 are 1, 2, 13, 26, 29, 58, 377, 754
The factors of 395 are 1, 5, 79, 395
The factors of 945 are 1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 105, 135, 189, 315, 945
The HCF of 754,395,945 is 1.
Lets's calculate GCF of 754,395,945
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 754
:1,2,13,26,29,58,377,754
Now, list down the factors of 395
:1,5,79,395
Now, list down the factors of 945
:1,3,5,7,9,15,21,27,35,45,63,105,135,189,315,945
Greatest Common Factor
We found the factors 754,395,945 . The biggest common factor number is the GCF number.
So the greatest common factor 754,395,945 is 1.
Lets's calculate LCM of 21,54,28
2 | 21, 54, 28 |
3 | 21, 27, 14 |
7 | 7, 9, 14 |
1, 9, 2 |
∴ So the LCM of the given numbers is 2 x 3 x 7 x 1 x 9 x 2 = 756
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/756
Therefore, the GCF of Fractions 754/21,395/54,945/28 is 1/756
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 21,54,28 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(21,54,28) = 1
common factors(in case of two or more numbers have common factors) = 42
GCF(21,54,28) x common factors =1 x 42 = 42
LCM(21,54,28) = ( 21 × 54 × 28 ) / 42
LCM(21,54,28) = 31752 / 42
LCM(21,54,28) = 756
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 754,395,945?
The HCF of 754,395,945 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 754/21, 395/54, 945/28?
Answer: GCF of Numerators as per given numbers 754/21, 395/54, 945/28 is
GCF of Numerators i.e. for 754,395,945 is 1
LCM of denominators i.e. for 21,54,28 is 756.
Thus, GCF of Fractions is 1/756.Finally, GCF of Fractions for 754/21, 395/54, 945/28 is 1/756.