GCF of 209/402, 171/388
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 209/402, 171/388 i.e 19/77988 easily. The following is the detailed procedure to determine the greatest common factor of fractions 209/402, 171/388.
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 209/402,171/388?
Given fractions are 209/402,171/388
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 209/402,171/388, numerators are 209,171
Denominators are 402,388
The GCF of 209,171 is 19 .
LCM of 402,388 is 77988.
The greatest common factor of 209/402,171/388 = [GCF of 209,171]/[LCM of 402,388]= 19/77988
Therefore, the GCF of 209/402,171/388 is 19/77988.
To find the highest common factor of 209,171, we have to find the factors of both numbers and list the highest common factor.
The factors of 209 are 1, 11, 19, 209
The factors of 171 are 1, 3, 9, 19, 57, 171
The HCF of 209,171 is 19.
Lets's calculate GCF of 209,171
| 19 | 209, 171 |
| 11, 9 |
∴ So the GCF of the given numbers is 19 = 19
Greatest Common Factor of 209,171 By Matching Biggest Common Factor Method
Now, list down the factors of 209
:1,11,19,209
Now, list down the factors of 171
:1,3,9,19,57,171
Greatest Common Factor
We found the factors 209,171 . The biggest common factor number is the GCF number.
So the greatest common factor 209,171 is 19.
Lets's calculate LCM of 402,388
| 2 | 402, 388 |
| 201, 194 |
∴ So the LCM of the given numbers is 2 x 201 x 194 = 77988
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 19/77988
Therefore, the GCF of Fractions 209/402,171/388 is 19/77988
Least Common Multiple of 402,388 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 402,388 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(402,388) = 2
common factors(in case of two or more numbers have common factors) = 1
GCF(402,388) x common factors =2 x 1 = 2
LCM(402,388) = ( 402 × 388 ) / 2
LCM(402,388) = 155976 / 2
LCM(402,388) = 77988
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FAQs on GCF of Fractions of 209/402, 171/388
1. What is the HCF of 209,171?
The HCF of 209,171 is 19
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 209/402, 171/388?
Answer: GCF of Numerators as per given numbers 209/402, 171/388 is
GCF of Numerators i.e. for 209,171 is 19
LCM of denominators i.e. for 402,388 is 77988.
Thus, GCF of Fractions is 19/77988.Finally, GCF of Fractions for 209/402, 171/388 is 19/77988.