Use our free GCF of Fractions Calculator tool to compute the GCF of 78/238, 63/390, 388/423 i.e 1/6543810 easily. The following is the detailed procedure to determine the greatest common factor of fractions 78/238, 63/390, 388/423.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 78/238,63/390,388/423
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 78/238,63/390,388/423, numerators are 78,63,388
Denominators are 238,390,423
The GCF of 78,63,388 is 1 .
LCM of 238,390,423 is 6543810.
The greatest common factor of 78/238,63/390,388/423 = [GCF of 78,63,388]/[LCM of 238,390,423]= 1/6543810
Therefore, the GCF of 78/238,63/390,388/423 is 1/6543810.
To find the highest common factor of 78,63,388, we have to find the factors of both numbers and list the highest common factor.
The factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78
The factors of 63 are 1, 3, 7, 9, 21, 63
The factors of 388 are 1, 2, 4, 97, 194, 388
The HCF of 78,63,388 is 1.
Lets's calculate GCF of 78,63,388
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 78
:1,2,3,6,13,26,39,78
Now, list down the factors of 63
:1,3,7,9,21,63
Now, list down the factors of 388
:1,2,4,97,194,388
Greatest Common Factor
We found the factors 78,63,388 . The biggest common factor number is the GCF number.
So the greatest common factor 78,63,388 is 1.
Lets's calculate LCM of 238,390,423
2 | 238, 390, 423 |
3 | 119, 195, 423 |
119, 65, 141 |
∴ So the LCM of the given numbers is 2 x 3 x 119 x 65 x 141 = 6543810
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/6543810
Therefore, the GCF of Fractions 78/238,63/390,388/423 is 1/6543810
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 238,390,423 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(238,390,423) = 1
common factors(in case of two or more numbers have common factors) = 6
GCF(238,390,423) x common factors =1 x 6 = 6
LCM(238,390,423) = ( 238 × 390 × 423 ) / 6
LCM(238,390,423) = 39262860 / 6
LCM(238,390,423) = 6543810
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 78,63,388?
The HCF of 78,63,388 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 78/238, 63/390, 388/423?
Answer: GCF of Numerators as per given numbers 78/238, 63/390, 388/423 is
GCF of Numerators i.e. for 78,63,388 is 1
LCM of denominators i.e. for 238,390,423 is 6543810.
Thus, GCF of Fractions is 1/6543810.Finally, GCF of Fractions for 78/238, 63/390, 388/423 is 1/6543810.