Use our free GCF of Fractions Calculator tool to compute the GCF of 630/780, 603/120 i.e 9/1560 easily. The following is the detailed procedure to determine the greatest common factor of fractions 630/780, 603/120.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 630/780,603/120
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 630/780,603/120, numerators are 630,603
Denominators are 780,120
The GCF of 630,603 is 9 .
LCM of 780,120 is 1560.
The greatest common factor of 630/780,603/120 = [GCF of 630,603]/[LCM of 780,120]= 9/1560
Therefore, the GCF of 630/780,603/120 is 9/1560.
To find the highest common factor of 630,603, 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 603 are 1, 3, 9, 67, 201, 603
The HCF of 630,603 is 9.
Lets's calculate GCF of 630,603
3 | 630, 603 |
3 | 210, 201 |
70, 67 |
∴ So the GCF of the given numbers is 3 x 3 = 9
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 603
:1,3,9,67,201,603
Greatest Common Factor
We found the factors 630,603 . The biggest common factor number is the GCF number.
So the greatest common factor 630,603 is 9.
Lets's calculate LCM of 780,120
2 | 780, 120 |
2 | 390, 60 |
3 | 195, 30 |
5 | 65, 10 |
13, 2 |
∴ So the LCM of the given numbers is 2 x 2 x 3 x 5 x 13 x 2 = 1560
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 9/1560
Therefore, the GCF of Fractions 630/780,603/120 is 9/1560
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 780,120 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(780,120) = 60
common factors(in case of two or more numbers have common factors) = 1
GCF(780,120) x common factors =60 x 1 = 60
LCM(780,120) = ( 780 × 120 ) / 60
LCM(780,120) = 93600 / 60
LCM(780,120) = 1560
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 630,603?
The HCF of 630,603 is 9
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 630/780, 603/120?
Answer: GCF of Numerators as per given numbers 630/780, 603/120 is
GCF of Numerators i.e. for 630,603 is 9
LCM of denominators i.e. for 780,120 is 1560.
Thus, GCF of Fractions is 9/1560.Finally, GCF of Fractions for 630/780, 603/120 is 9/1560.