Use our free GCF of Fractions Calculator tool to compute the GCF of 690/805, 490/854 i.e 10/98210 easily. The following is the detailed procedure to determine the greatest common factor of fractions 690/805, 490/854.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 690/805,490/854
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 690/805,490/854, numerators are 690,490
Denominators are 805,854
The GCF of 690,490 is 10 .
LCM of 805,854 is 98210.
The greatest common factor of 690/805,490/854 = [GCF of 690,490]/[LCM of 805,854]= 10/98210
Therefore, the GCF of 690/805,490/854 is 10/98210.
To find the highest common factor of 690,490, we have to find the factors of both numbers and list the highest common factor.
The factors of 690 are 1, 2, 3, 5, 6, 10, 15, 23, 30, 46, 69, 115, 138, 230, 345, 690
The factors of 490 are 1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 490
The HCF of 690,490 is 10.
Lets's calculate GCF of 690,490
2 | 690, 490 |
5 | 345, 245 |
69, 49 |
∴ So the GCF of the given numbers is 2 x 5 = 10
Now, list down the factors of 690
:1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690
Now, list down the factors of 490
:1,2,5,7,10,14,35,49,70,98,245,490
Greatest Common Factor
We found the factors 690,490 . The biggest common factor number is the GCF number.
So the greatest common factor 690,490 is 10.
Lets's calculate LCM of 805,854
7 | 805, 854 |
115, 122 |
∴ So the LCM of the given numbers is 7 x 115 x 122 = 98210
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 10/98210
Therefore, the GCF of Fractions 690/805,490/854 is 10/98210
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 805,854 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(805,854) = 7
common factors(in case of two or more numbers have common factors) = 1
GCF(805,854) x common factors =7 x 1 = 7
LCM(805,854) = ( 805 × 854 ) / 7
LCM(805,854) = 687470 / 7
LCM(805,854) = 98210
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 690,490?
The HCF of 690,490 is 10
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 690/805, 490/854?
Answer: GCF of Numerators as per given numbers 690/805, 490/854 is
GCF of Numerators i.e. for 690,490 is 10
LCM of denominators i.e. for 805,854 is 98210.
Thus, GCF of Fractions is 10/98210.Finally, GCF of Fractions for 690/805, 490/854 is 10/98210.