GCF of 720/78, 455/144
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 720/78, 455/144 i.e 5/1872 easily. The following is the detailed procedure to determine the greatest common factor of fractions 720/78, 455/144.
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 720/78,455/144?
Given fractions are 720/78,455/144
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 720/78,455/144, numerators are 720,455
Denominators are 78,144
The GCF of 720,455 is 5 .
LCM of 78,144 is 1872.
The greatest common factor of 720/78,455/144 = [GCF of 720,455]/[LCM of 78,144]= 5/1872
Therefore, the GCF of 720/78,455/144 is 5/1872.
To find the highest common factor of 720,455, we have to find the factors of both numbers and list the highest common factor.
The factors of 720 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720
The factors of 455 are 1, 5, 7, 13, 35, 65, 91, 455
The HCF of 720,455 is 5.
Lets's calculate GCF of 720,455
| 5 | 720, 455 |
| 144, 91 |
∴ So the GCF of the given numbers is 5 = 5
Greatest Common Factor of 720,455 By Matching Biggest Common Factor Method
Now, list down the factors of 720
:1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,30,36,40,45,48,60,72,80,90,120,144,180,240,360,720
Now, list down the factors of 455
:1,5,7,13,35,65,91,455
Greatest Common Factor
We found the factors 720,455 . The biggest common factor number is the GCF number.
So the greatest common factor 720,455 is 5.
Lets's calculate LCM of 78,144
| 2 | 78, 144 |
| 3 | 39, 72 |
| 13, 24 |
∴ So the LCM of the given numbers is 2 x 3 x 13 x 24 = 1872
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/1872
Therefore, the GCF of Fractions 720/78,455/144 is 5/1872
Least Common Multiple of 78,144 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 78,144 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(78,144) = 6
common factors(in case of two or more numbers have common factors) = 1
GCF(78,144) x common factors =6 x 1 = 6
LCM(78,144) = ( 78 × 144 ) / 6
LCM(78,144) = 11232 / 6
LCM(78,144) = 1872
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 720/78, 455/144
1. What is the HCF of 720,455?
The HCF of 720,455 is 5
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 720/78, 455/144?
Answer: GCF of Numerators as per given numbers 720/78, 455/144 is
GCF of Numerators i.e. for 720,455 is 5
LCM of denominators i.e. for 78,144 is 1872.
Thus, GCF of Fractions is 5/1872.Finally, GCF of Fractions for 720/78, 455/144 is 5/1872.