Use our free GCF of Fractions Calculator tool to compute the GCF of 423/846, 705/168 i.e 141/23688 easily. The following is the detailed procedure to determine the greatest common factor of fractions 423/846, 705/168.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 423/846,705/168
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 423/846,705/168, numerators are 423,705
Denominators are 846,168
The GCF of 423,705 is 141 .
LCM of 846,168 is 23688.
The greatest common factor of 423/846,705/168 = [GCF of 423,705]/[LCM of 846,168]= 141/23688
Therefore, the GCF of 423/846,705/168 is 141/23688.
To find the highest common factor of 423,705, we have to find the factors of both numbers and list the highest common factor.
The factors of 423 are 1, 3, 9, 47, 141, 423
The factors of 705 are 1, 3, 5, 15, 47, 141, 235, 705
The HCF of 423,705 is 141.
Lets's calculate GCF of 423,705
3 | 423, 705 |
47 | 141, 235 |
3, 5 |
∴ So the GCF of the given numbers is 3 x 47 = 141
Now, list down the factors of 423
:1,3,9,47,141,423
Now, list down the factors of 705
:1,3,5,15,47,141,235,705
Greatest Common Factor
We found the factors 423,705 . The biggest common factor number is the GCF number.
So the greatest common factor 423,705 is 141.
Lets's calculate LCM of 846,168
2 | 846, 168 |
3 | 423, 84 |
141, 28 |
∴ So the LCM of the given numbers is 2 x 3 x 141 x 28 = 23688
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 141/23688
Therefore, the GCF of Fractions 423/846,705/168 is 141/23688
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 846,168 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(846,168) = 6
common factors(in case of two or more numbers have common factors) = 1
GCF(846,168) x common factors =6 x 1 = 6
LCM(846,168) = ( 846 × 168 ) / 6
LCM(846,168) = 142128 / 6
LCM(846,168) = 23688
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 423,705?
The HCF of 423,705 is 141
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 423/846, 705/168?
Answer: GCF of Numerators as per given numbers 423/846, 705/168 is
GCF of Numerators i.e. for 423,705 is 141
LCM of denominators i.e. for 846,168 is 23688.
Thus, GCF of Fractions is 141/23688.Finally, GCF of Fractions for 423/846, 705/168 is 141/23688.