Use our free GCF of Fractions Calculator tool to compute the GCF of 287/921, 786/687 i.e 1/210909 easily. The following is the detailed procedure to determine the greatest common factor of fractions 287/921, 786/687.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 287/921,786/687
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 287/921,786/687, numerators are 287,786
Denominators are 921,687
The GCF of 287,786 is 1 .
LCM of 921,687 is 210909.
The greatest common factor of 287/921,786/687 = [GCF of 287,786]/[LCM of 921,687]= 1/210909
Therefore, the GCF of 287/921,786/687 is 1/210909.
To find the highest common factor of 287,786, we have to find the factors of both numbers and list the highest common factor.
The factors of 287 are 1, 7, 41, 287
The factors of 786 are 1, 2, 3, 6, 131, 262, 393, 786
The HCF of 287,786 is 1.
Lets's calculate GCF of 287,786
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 287
:1,7,41,287
Now, list down the factors of 786
:1,2,3,6,131,262,393,786
Greatest Common Factor
We found the factors 287,786 . The biggest common factor number is the GCF number.
So the greatest common factor 287,786 is 1.
Lets's calculate LCM of 921,687
3 | 921, 687 |
307, 229 |
∴ So the LCM of the given numbers is 3 x 307 x 229 = 210909
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/210909
Therefore, the GCF of Fractions 287/921,786/687 is 1/210909
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 921,687 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(921,687) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(921,687) x common factors =3 x 1 = 3
LCM(921,687) = ( 921 × 687 ) / 3
LCM(921,687) = 632727 / 3
LCM(921,687) = 210909
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 287,786?
The HCF of 287,786 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 287/921, 786/687?
Answer: GCF of Numerators as per given numbers 287/921, 786/687 is
GCF of Numerators i.e. for 287,786 is 1
LCM of denominators i.e. for 921,687 is 210909.
Thus, GCF of Fractions is 1/210909.Finally, GCF of Fractions for 287/921, 786/687 is 1/210909.