GCF of 30/12, 48/55, 81/20, 77/236
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 30/12, 48/55, 81/20, 77/236 i.e 1/38940 easily. The following is the detailed procedure to determine the greatest common factor of fractions 30/12, 48/55, 81/20, 77/236.
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 30/12,48/55,81/20,77/236?
Given fractions are 30/12,48/55,81/20,77/236
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 30/12,48/55,81/20,77/236, numerators are 30,48,81,77
Denominators are 12,55,20,236
The GCF of 30,48,81,77 is 1 .
LCM of 12,55,20,236 is 38940.
The greatest common factor of 30/12,48/55,81/20,77/236 = [GCF of 30,48,81,77]/[LCM of 12,55,20,236]= 1/38940
Therefore, the GCF of 30/12,48/55,81/20,77/236 is 1/38940.
To find the highest common factor of 30,48,81,77, we have to find the factors of both numbers and list the highest common factor.
The factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30
The factors of 48 are 1, 2, 3, 4, 6, 8, 12, 16, 24, 48
The factors of 81 are 1, 3, 9, 27, 81
The factors of 77 are 1, 7, 11, 77
The HCF of 30,48,81,77 is 1.
Lets's calculate GCF of 30,48,81,77
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 30,48,81,77 By Matching Biggest Common Factor Method
Now, list down the factors of 30
:1,2,3,5,6,10,15,30
Now, list down the factors of 48
:1,2,3,4,6,8,12,16,24,48
Now, list down the factors of 81
:1,3,9,27,81
Now, list down the factors of 77
:1,7,11,77
Greatest Common Factor
We found the factors 30,48,81,77 . The biggest common factor number is the GCF number.
So the greatest common factor 30,48,81,77 is 1.
Lets's calculate LCM of 12,55,20,236
| 2 | 12, 55, 20, 236 |
| 2 | 6, 55, 10, 118 |
| 5 | 3, 55, 5, 59 |
| 3, 11, 1, 59 |
∴ So the LCM of the given numbers is 2 x 2 x 5 x 3 x 11 x 1 x 59 = 38940
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/38940
Therefore, the GCF of Fractions 30/12,48/55,81/20,77/236 is 1/38940
Least Common Multiple of 12,55,20,236 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 12,55,20,236 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(12,55,20,236) = 1
common factors(in case of two or more numbers have common factors) = 80
GCF(12,55,20,236) x common factors =1 x 80 = 80
LCM(12,55,20,236) = ( 12 × 55 × 20 × 236 ) / 80
LCM(12,55,20,236) = 3115200 / 80
LCM(12,55,20,236) = 38940
GCF of Fractions Calculation Examples
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FAQs on GCF of Fractions of 30/12, 48/55, 81/20, 77/236
1. What is the HCF of 30,48,81,77?
The HCF of 30,48,81,77 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 30/12, 48/55, 81/20, 77/236?
Answer: GCF of Numerators as per given numbers 30/12, 48/55, 81/20, 77/236 is
GCF of Numerators i.e. for 30,48,81,77 is 1
LCM of denominators i.e. for 12,55,20,236 is 38940.
Thus, GCF of Fractions is 1/38940.Finally, GCF of Fractions for 30/12, 48/55, 81/20, 77/236 is 1/38940.