Use our free GCF of Fractions Calculator tool to compute the GCF of 978/438, 140/885 i.e 2/129210 easily. The following is the detailed procedure to determine the greatest common factor of fractions 978/438, 140/885.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 978/438,140/885
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 978/438,140/885, numerators are 978,140
Denominators are 438,885
The GCF of 978,140 is 2 .
LCM of 438,885 is 129210.
The greatest common factor of 978/438,140/885 = [GCF of 978,140]/[LCM of 438,885]= 2/129210
Therefore, the GCF of 978/438,140/885 is 2/129210.
To find the highest common factor of 978,140, we have to find the factors of both numbers and list the highest common factor.
The factors of 978 are 1, 2, 3, 6, 163, 326, 489, 978
The factors of 140 are 1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140
The HCF of 978,140 is 2.
Lets's calculate GCF of 978,140
2 | 978, 140 |
489, 70 |
∴ So the GCF of the given numbers is 2 = 2
Now, list down the factors of 978
:1,2,3,6,163,326,489,978
Now, list down the factors of 140
:1,2,4,5,7,10,14,20,28,35,70,140
Greatest Common Factor
We found the factors 978,140 . The biggest common factor number is the GCF number.
So the greatest common factor 978,140 is 2.
Lets's calculate LCM of 438,885
3 | 438, 885 |
146, 295 |
∴ So the LCM of the given numbers is 3 x 146 x 295 = 129210
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/129210
Therefore, the GCF of Fractions 978/438,140/885 is 2/129210
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 438,885 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(438,885) = 3
common factors(in case of two or more numbers have common factors) = 1
GCF(438,885) x common factors =3 x 1 = 3
LCM(438,885) = ( 438 × 885 ) / 3
LCM(438,885) = 387630 / 3
LCM(438,885) = 129210
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 978,140?
The HCF of 978,140 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 978/438, 140/885?
Answer: GCF of Numerators as per given numbers 978/438, 140/885 is
GCF of Numerators i.e. for 978,140 is 2
LCM of denominators i.e. for 438,885 is 129210.
Thus, GCF of Fractions is 2/129210.Finally, GCF of Fractions for 978/438, 140/885 is 2/129210.