GCF of 638/189, 900/780
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 638/189, 900/780 i.e 2/49140 easily. The following is the detailed procedure to determine the greatest common factor of fractions 638/189, 900/780.
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 638/189,900/780?
Given fractions are 638/189,900/780
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 638/189,900/780, numerators are 638,900
Denominators are 189,780
The GCF of 638,900 is 2 .
LCM of 189,780 is 49140.
The greatest common factor of 638/189,900/780 = [GCF of 638,900]/[LCM of 189,780]= 2/49140
Therefore, the GCF of 638/189,900/780 is 2/49140.
To find the highest common factor of 638,900, we have to find the factors of both numbers and list the highest common factor.
The factors of 638 are 1, 2, 11, 22, 29, 58, 319, 638
The factors of 900 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 30, 36, 45, 50, 60, 75, 90, 100, 150, 180, 225, 300, 450, 900
The HCF of 638,900 is 2.
Lets's calculate GCF of 638,900
| 2 | 638, 900 |
| 319, 450 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 638,900 By Matching Biggest Common Factor Method
Now, list down the factors of 638
:1,2,11,22,29,58,319,638
Now, list down the factors of 900
:1,2,3,4,5,6,9,10,12,15,18,20,25,30,36,45,50,60,75,90,100,150,180,225,300,450,900
Greatest Common Factor
We found the factors 638,900 . The biggest common factor number is the GCF number.
So the greatest common factor 638,900 is 2.
Lets's calculate LCM of 189,780
| 3 | 189, 780 |
| 63, 260 |
∴ So the LCM of the given numbers is 3 x 63 x 260 = 49140
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/49140
Therefore, the GCF of Fractions 638/189,900/780 is 2/49140
Least Common Multiple of 189,780 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 189,780 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(189,780) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(189,780) x common factors =3 x 1 = 3
LCM(189,780) = ( 189 × 780 ) / 3
LCM(189,780) = 147420 / 3
LCM(189,780) = 49140
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 638/189, 900/780
1. What is the HCF of 638,900?
The HCF of 638,900 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 638/189, 900/780?
Answer: GCF of Numerators as per given numbers 638/189, 900/780 is
GCF of Numerators i.e. for 638,900 is 2
LCM of denominators i.e. for 189,780 is 49140.
Thus, GCF of Fractions is 2/49140.Finally, GCF of Fractions for 638/189, 900/780 is 2/49140.