GCF of 61/38, 21/71, 421/448
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 61/38, 21/71, 421/448 i.e 1/604352 easily. The following is the detailed procedure to determine the greatest common factor of fractions 61/38, 21/71, 421/448.
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 61/38,21/71,421/448?
Given fractions are 61/38,21/71,421/448
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 61/38,21/71,421/448, numerators are 61,21,421
Denominators are 38,71,448
The GCF of 61,21,421 is 1 .
LCM of 38,71,448 is 604352.
The greatest common factor of 61/38,21/71,421/448 = [GCF of 61,21,421]/[LCM of 38,71,448]= 1/604352
Therefore, the GCF of 61/38,21/71,421/448 is 1/604352.
To find the highest common factor of 61,21,421, we have to find the factors of both numbers and list the highest common factor.
The factors of 61 are 1, 61
The factors of 21 are 1, 3, 7, 21
The factors of 421 are 1, 421
The HCF of 61,21,421 is 1.
Lets's calculate GCF of 61,21,421
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 61,21,421 By Matching Biggest Common Factor Method
Now, list down the factors of 61
:1,61
Now, list down the factors of 21
:1,3,7,21
Now, list down the factors of 421
:1,421
Greatest Common Factor
We found the factors 61,21,421 . The biggest common factor number is the GCF number.
So the greatest common factor 61,21,421 is 1.
Lets's calculate LCM of 38,71,448
| 2 | 38, 71, 448 |
| 19, 71, 224 |
∴ So the LCM of the given numbers is 2 x 19 x 71 x 224 = 604352
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/604352
Therefore, the GCF of Fractions 61/38,21/71,421/448 is 1/604352
Least Common Multiple of 38,71,448 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 38,71,448 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(38,71,448) = 1
common factors(in case of two or more numbers have common factors) = 2
GCF(38,71,448) x common factors =1 x 2 = 2
LCM(38,71,448) = ( 38 × 71 × 448 ) / 2
LCM(38,71,448) = 1208704 / 2
LCM(38,71,448) = 604352
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FAQs on GCF of Fractions of 61/38, 21/71, 421/448
1. What is the HCF of 61,21,421?
The HCF of 61,21,421 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 61/38, 21/71, 421/448?
Answer: GCF of Numerators as per given numbers 61/38, 21/71, 421/448 is
GCF of Numerators i.e. for 61,21,421 is 1
LCM of denominators i.e. for 38,71,448 is 604352.
Thus, GCF of Fractions is 1/604352.Finally, GCF of Fractions for 61/38, 21/71, 421/448 is 1/604352.