Use our free GCF of Fractions Calculator tool to compute the GCF of 65/70, 784/40, 811/643 i.e 1/180040 easily. The following is the detailed procedure to determine the greatest common factor of fractions 65/70, 784/40, 811/643.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 65/70,784/40,811/643
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 65/70,784/40,811/643, numerators are 65,784,811
Denominators are 70,40,643
The GCF of 65,784,811 is 1 .
LCM of 70,40,643 is 180040.
The greatest common factor of 65/70,784/40,811/643 = [GCF of 65,784,811]/[LCM of 70,40,643]= 1/180040
Therefore, the GCF of 65/70,784/40,811/643 is 1/180040.
To find the highest common factor of 65,784,811, we have to find the factors of both numbers and list the highest common factor.
The factors of 65 are 1, 5, 13, 65
The factors of 784 are 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784
The factors of 811 are 1, 811
The HCF of 65,784,811 is 1.
Lets's calculate GCF of 65,784,811
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 65
:1,5,13,65
Now, list down the factors of 784
:1,2,4,7,8,14,16,28,49,56,98,112,196,392,784
Now, list down the factors of 811
:1,811
Greatest Common Factor
We found the factors 65,784,811 . The biggest common factor number is the GCF number.
So the greatest common factor 65,784,811 is 1.
Lets's calculate LCM of 70,40,643
2 | 70, 40, 643 |
5 | 35, 20, 643 |
7, 4, 643 |
∴ So the LCM of the given numbers is 2 x 5 x 7 x 4 x 643 = 180040
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/180040
Therefore, the GCF of Fractions 65/70,784/40,811/643 is 1/180040
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 70,40,643 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(70,40,643) = 1
common factors(in case of two or more numbers have common factors) = 10
GCF(70,40,643) x common factors =1 x 10 = 10
LCM(70,40,643) = ( 70 × 40 × 643 ) / 10
LCM(70,40,643) = 1800400 / 10
LCM(70,40,643) = 180040
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 65,784,811?
The HCF of 65,784,811 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 65/70, 784/40, 811/643?
Answer: GCF of Numerators as per given numbers 65/70, 784/40, 811/643 is
GCF of Numerators i.e. for 65,784,811 is 1
LCM of denominators i.e. for 70,40,643 is 180040.
Thus, GCF of Fractions is 1/180040.Finally, GCF of Fractions for 65/70, 784/40, 811/643 is 1/180040.