GCF of 48/724, 21/792, 438/121
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 48/724, 21/792, 438/121 i.e 3/1576872 easily. The following is the detailed procedure to determine the greatest common factor of fractions 48/724, 21/792, 438/121.
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 48/724,21/792,438/121?
Given fractions are 48/724,21/792,438/121
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 48/724,21/792,438/121, numerators are 48,21,438
Denominators are 724,792,121
The GCF of 48,21,438 is 3 .
LCM of 724,792,121 is 1576872.
The greatest common factor of 48/724,21/792,438/121 = [GCF of 48,21,438]/[LCM of 724,792,121]= 3/1576872
Therefore, the GCF of 48/724,21/792,438/121 is 3/1576872.
To find the highest common factor of 48,21,438, we have to find the factors of both numbers and list the highest common factor.
The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
The factors of 21 are 1, 3, 7, 21
The factors of 438 are 1, 2, 3, 6, 73, 146, 219, 438
The HCF of 48,21,438 is 3.
Lets's calculate GCF of 48,21,438
| 3 | 48, 21, 438 |
| 16, 7, 146 |
∴ So the GCF of the given numbers is 3 = 3
Greatest Common Factor of 48,21,438 By Matching Biggest Common Factor Method
Now, list down the factors of 48
:1,2,3,4,6,8,12,16,24,48
Now, list down the factors of 21
:1,3,7,21
Now, list down the factors of 438
:1,2,3,6,73,146,219,438
Greatest Common Factor
We found the factors 48,21,438 . The biggest common factor number is the GCF number.
So the greatest common factor 48,21,438 is 3.
Lets's calculate LCM of 724,792,121
| 2 | 724, 792, 121 |
| 2 | 362, 396, 121 |
| 11 | 181, 198, 121 |
| 181, 18, 11 |
∴ So the LCM of the given numbers is 2 x 2 x 11 x 181 x 18 x 11 = 1576872
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/1576872
Therefore, the GCF of Fractions 48/724,21/792,438/121 is 3/1576872
Least Common Multiple of 724,792,121 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 724,792,121 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(724,792,121) = 1
common factors(in case of two or more numbers have common factors) = 44
GCF(724,792,121) x common factors =1 x 44 = 44
LCM(724,792,121) = ( 724 × 792 × 121 ) / 44
LCM(724,792,121) = 69382368 / 44
LCM(724,792,121) = 1576872
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FAQs on GCF of Fractions of 48/724, 21/792, 438/121
1. What is the HCF of 48,21,438?
The HCF of 48,21,438 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 48/724, 21/792, 438/121?
Answer: GCF of Numerators as per given numbers 48/724, 21/792, 438/121 is
GCF of Numerators i.e. for 48,21,438 is 3
LCM of denominators i.e. for 724,792,121 is 1576872.
Thus, GCF of Fractions is 3/1576872.Finally, GCF of Fractions for 48/724, 21/792, 438/121 is 3/1576872.