Use our free GCF of Fractions Calculator tool to compute the GCF of 390/490, 273/602 i.e 39/21070 easily. The following is the detailed procedure to determine the greatest common factor of fractions 390/490, 273/602.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 390/490,273/602
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 390/490,273/602, numerators are 390,273
Denominators are 490,602
The GCF of 390,273 is 39 .
LCM of 490,602 is 21070.
The greatest common factor of 390/490,273/602 = [GCF of 390,273]/[LCM of 490,602]= 39/21070
Therefore, the GCF of 390/490,273/602 is 39/21070.
To find the highest common factor of 390,273, we have to find the factors of both numbers and list the highest common factor.
The factors of 390 are 1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390
The factors of 273 are 1, 3, 7, 13, 21, 39, 91, 273
The HCF of 390,273 is 39.
Lets's calculate GCF of 390,273
3 | 390, 273 |
13 | 130, 91 |
10, 7 |
∴ So the GCF of the given numbers is 3 x 13 = 39
Now, list down the factors of 390
:1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390
Now, list down the factors of 273
:1,3,7,13,21,39,91,273
Greatest Common Factor
We found the factors 390,273 . The biggest common factor number is the GCF number.
So the greatest common factor 390,273 is 39.
Lets's calculate LCM of 490,602
2 | 490, 602 |
7 | 245, 301 |
35, 43 |
∴ So the LCM of the given numbers is 2 x 7 x 35 x 43 = 21070
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 39/21070
Therefore, the GCF of Fractions 390/490,273/602 is 39/21070
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 490,602 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(490,602) = 14
common factors(in case of two or more numbers have common factors) = 1
GCF(490,602) x common factors =14 x 1 = 14
LCM(490,602) = ( 490 × 602 ) / 14
LCM(490,602) = 294980 / 14
LCM(490,602) = 21070
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 390,273?
The HCF of 390,273 is 39
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 390/490, 273/602?
Answer: GCF of Numerators as per given numbers 390/490, 273/602 is
GCF of Numerators i.e. for 390,273 is 39
LCM of denominators i.e. for 490,602 is 21070.
Thus, GCF of Fractions is 39/21070.Finally, GCF of Fractions for 390/490, 273/602 is 39/21070.