GCF of 630/81, 516/84, 872/42
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 630/81, 516/84, 872/42 i.e 2/2268 easily. The following is the detailed procedure to determine the greatest common factor of fractions 630/81, 516/84, 872/42.
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 630/81,516/84,872/42?
Given fractions are 630/81,516/84,872/42
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 630/81,516/84,872/42, numerators are 630,516,872
Denominators are 81,84,42
The GCF of 630,516,872 is 2 .
LCM of 81,84,42 is 2268.
The greatest common factor of 630/81,516/84,872/42 = [GCF of 630,516,872]/[LCM of 81,84,42]= 2/2268
Therefore, the GCF of 630/81,516/84,872/42 is 2/2268.
To find the highest common factor of 630,516,872, we have to find the factors of both numbers and list the highest common factor.
The factors of 630 are 1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630
The factors of 516 are 1, 2, 3, 4, 6, 12, 43, 86, 129, 172, 258, 516
The factors of 872 are 1, 2, 4, 8, 109, 218, 436, 872
The HCF of 630,516,872 is 2.
Lets's calculate GCF of 630,516,872
| 2 | 630, 516, 872 |
| 315, 258, 436 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 630,516,872 By Matching Biggest Common Factor Method
Now, list down the factors of 630
:1,2,3,5,6,7,9,10,14,15,18,21,30,35,42,45,63,70,90,105,126,210,315,630
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 872
:1,2,4,8,109,218,436,872
Greatest Common Factor
We found the factors 630,516,872 . The biggest common factor number is the GCF number.
So the greatest common factor 630,516,872 is 2.
Lets's calculate LCM of 81,84,42
| 2 | 81, 84, 42 |
| 3 | 81, 42, 21 |
| 7 | 27, 14, 7 |
| 27, 2, 1 |
∴ So the LCM of the given numbers is 2 x 3 x 7 x 27 x 2 x 1 = 2268
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/2268
Therefore, the GCF of Fractions 630/81,516/84,872/42 is 2/2268
Least Common Multiple of 81,84,42 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 81,84,42 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(81,84,42) = 3
common factors(in case of two or more numbers have common factors) = 42
GCF(81,84,42) x common factors =3 x 42 = 126
LCM(81,84,42) = ( 81 × 84 × 42 ) / 126
LCM(81,84,42) = 285768 / 126
LCM(81,84,42) = 2268
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FAQs on GCF of Fractions of 630/81, 516/84, 872/42
1. What is the HCF of 630,516,872?
The HCF of 630,516,872 is 2
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 630/81, 516/84, 872/42?
Answer: GCF of Numerators as per given numbers 630/81, 516/84, 872/42 is
GCF of Numerators i.e. for 630,516,872 is 2
LCM of denominators i.e. for 81,84,42 is 2268.
Thus, GCF of Fractions is 2/2268.Finally, GCF of Fractions for 630/81, 516/84, 872/42 is 2/2268.