Use our free GCF of Fractions Calculator tool to compute the GCF of 817/812, 688/343 i.e 43/39788 easily. The following is the detailed procedure to determine the greatest common factor of fractions 817/812, 688/343.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 817/812,688/343
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 817/812,688/343, numerators are 817,688
Denominators are 812,343
The GCF of 817,688 is 43 .
LCM of 812,343 is 39788.
The greatest common factor of 817/812,688/343 = [GCF of 817,688]/[LCM of 812,343]= 43/39788
Therefore, the GCF of 817/812,688/343 is 43/39788.
To find the highest common factor of 817,688, we have to find the factors of both numbers and list the highest common factor.
The factors of 817 are 1, 19, 43, 817
The factors of 688 are 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
The HCF of 817,688 is 43.
Lets's calculate GCF of 817,688
43 | 817, 688 |
19, 16 |
∴ So the GCF of the given numbers is 43 = 43
Now, list down the factors of 817
:1,19,43,817
Now, list down the factors of 688
:1,2,4,8,16,43,86,172,344,688
Greatest Common Factor
We found the factors 817,688 . The biggest common factor number is the GCF number.
So the greatest common factor 817,688 is 43.
Lets's calculate LCM of 812,343
7 | 812, 343 |
116, 49 |
∴ So the LCM of the given numbers is 7 x 116 x 49 = 39788
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 43/39788
Therefore, the GCF of Fractions 817/812,688/343 is 43/39788
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 812,343 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(812,343) = 7
common factors(in case of two or more numbers have common factors) = 1
GCF(812,343) x common factors =7 x 1 = 7
LCM(812,343) = ( 812 × 343 ) / 7
LCM(812,343) = 278516 / 7
LCM(812,343) = 39788
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 817,688?
The HCF of 817,688 is 43
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 817/812, 688/343?
Answer: GCF of Numerators as per given numbers 817/812, 688/343 is
GCF of Numerators i.e. for 817,688 is 43
LCM of denominators i.e. for 812,343 is 39788.
Thus, GCF of Fractions is 43/39788.Finally, GCF of Fractions for 817/812, 688/343 is 43/39788.