GCF of 393/55, 516/90, 438/45
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 393/55, 516/90, 438/45 i.e 3/990 easily. The following is the detailed procedure to determine the greatest common factor of fractions 393/55, 516/90, 438/45.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 393/55,516/90,438/45?
Given fractions are 393/55,516/90,438/45
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 393/55,516/90,438/45, numerators are 393,516,438
Denominators are 55,90,45
The GCF of 393,516,438 is 3 .
LCM of 55,90,45 is 990.
The greatest common factor of 393/55,516/90,438/45 = [GCF of 393,516,438]/[LCM of 55,90,45]= 3/990
Therefore, the GCF of 393/55,516/90,438/45 is 3/990.
To find the highest common factor of 393,516,438, we have to find the factors of both numbers and list the highest common factor.
The factors of 393 are 1, 3, 131, 393
The factors of 516 are 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516
The factors of 438 are 1, 2, 3, 6, 73, 146, 219, 438
The HCF of 393,516,438 is 3.
Lets's calculate GCF of 393,516,438
| 3 | 393, 516, 438 |
| 131, 172, 146 |
∴ So the GCF of the given numbers is 3 = 3
Greatest Common Factor of 393,516,438 By Matching Biggest Common Factor Method
Now, list down the factors of 393
:1,3,131,393
Now, list down the factors of 516
:1,2,3,4,6,12,43,86,129,172,258,516
Now, list down the factors of 438
:1,2,3,6,73,146,219,438
Greatest Common Factor
We found the factors 393,516,438 . The biggest common factor number is the GCF number.
So the greatest common factor 393,516,438 is 3.
Lets's calculate LCM of 55,90,45
| 3 | 55, 90, 45 |
| 3 | 55, 30, 15 |
| 5 | 55, 10, 5 |
| 11, 2, 1 |
∴ So the LCM of the given numbers is 3 x 3 x 5 x 11 x 2 x 1 = 990
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/990
Therefore, the GCF of Fractions 393/55,516/90,438/45 is 3/990
Least Common Multiple of 55,90,45 with GCF Formula
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 55,90,45 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(55,90,45) = 5
common factors(in case of two or more numbers have common factors) = 45
GCF(55,90,45) x common factors =5 x 45 = 225
LCM(55,90,45) = ( 55 × 90 × 45 ) / 225
LCM(55,90,45) = 222750 / 225
LCM(55,90,45) = 990
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FAQs on GCF of Fractions of 393/55, 516/90, 438/45
1. What is the HCF of 393,516,438?
The HCF of 393,516,438 is 3
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 393/55, 516/90, 438/45?
Answer: GCF of Numerators as per given numbers 393/55, 516/90, 438/45 is
GCF of Numerators i.e. for 393,516,438 is 3
LCM of denominators i.e. for 55,90,45 is 990.
Thus, GCF of Fractions is 3/990.Finally, GCF of Fractions for 393/55, 516/90, 438/45 is 3/990.