Use our free GCF of Fractions Calculator tool to compute the GCF of 28/15, 78/33, 326/55 i.e 2/165 easily. The following is the detailed procedure to determine the greatest common factor of fractions 28/15, 78/33, 326/55.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 28/15,78/33,326/55
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 28/15,78/33,326/55, numerators are 28,78,326
Denominators are 15,33,55
The GCF of 28,78,326 is 2 .
LCM of 15,33,55 is 165.
The greatest common factor of 28/15,78/33,326/55 = [GCF of 28,78,326]/[LCM of 15,33,55]= 2/165
Therefore, the GCF of 28/15,78/33,326/55 is 2/165.
To find the highest common factor of 28,78,326, we have to find the factors of both numbers and list the highest common factor.
The factors of 28 are 1, 2, 4, 7, 14, 28
The factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78
The factors of 326 are 1, 2, 163, 326
The HCF of 28,78,326 is 2.
Lets's calculate GCF of 28,78,326
2 | 28, 78, 326 |
14, 39, 163 |
∴ So the GCF of the given numbers is 2 = 2
Now, list down the factors of 28
:1,2,4,7,14,28
Now, list down the factors of 78
:1,2,3,6,13,26,39,78
Now, list down the factors of 326
:1,2,163,326
Greatest Common Factor
We found the factors 28,78,326 . The biggest common factor number is the GCF number.
So the greatest common factor 28,78,326 is 2.
Lets's calculate LCM of 15,33,55
3 | 15, 33, 55 |
5 | 5, 11, 55 |
11 | 1, 11, 11 |
1, 1, 1 |
∴ So the LCM of the given numbers is 3 x 5 x 11 x 1 x 1 x 1 = 165
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/165
Therefore, the GCF of Fractions 28/15,78/33,326/55 is 2/165
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 15,33,55 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(15,33,55) = 1
common factors(in case of two or more numbers have common factors) = 165
GCF(15,33,55) x common factors =1 x 165 = 165
LCM(15,33,55) = ( 15 × 33 × 55 ) / 165
LCM(15,33,55) = 27225 / 165
LCM(15,33,55) = 165
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 28,78,326?
The HCF of 28,78,326 is 2
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 28/15, 78/33, 326/55?
Answer: GCF of Numerators as per given numbers 28/15, 78/33, 326/55 is
GCF of Numerators i.e. for 28,78,326 is 2
LCM of denominators i.e. for 15,33,55 is 165.
Thus, GCF of Fractions is 2/165.Finally, GCF of Fractions for 28/15, 78/33, 326/55 is 2/165.