Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 399/99,1572/630
Formula to find GCF of Fractions is
GCF = GCF of Numerators/LCM of Denominators
As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators
In the given fractions GCF of Numerators means GCF of 399,1572
Greatest Common Factor of Numerators i.e. GCF of 399,1572 is 3 .
LCM of Denominators means LCM of 99,630 as per the given fractions.
LCM of 99,630 is 6930 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 399,1572
3 | 399, 1572 |
133, 524 |
∴ So the GCF of the given numbers is 3 = 3
Factors of 399
List of positive integer factors of 399 that divides 399 without a remainder.
1,3,7,19,21,57,133,399
Factors of 1572
List of positive integer factors of 1572 that divides 1572 without a remainder.
1,2,3,4,6,12,131,262,393,524,786,1572
Greatest Common Factor
We found the factors 399,1572 . The biggest common factor number is the GCF number.
So the greatest common factor 399,1572 is 3.
Lets's calculate LCM of 99,630
3 | 99, 630 |
3 | 33, 210 |
11, 70 |
∴ So the LCM of the given numbers is 3 x 3 x 11 x 70 = 6930
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 3/6930
Therefore, the GCF of Fractions 399/99,1572/630 is 3/6930
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 99,630 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(99,630) = 9
common factors(in case of two or more numbers have common factors) = 1
GCF(99,630) x common factors =9 x 1 = 9
LCM(99,630) = ( 99 × 630 ) / 9
LCM(99,630) = 62370 / 9
LCM(99,630) = 6930
Here are some samples of GCF of Fractions calculations.
Here are some samples of GCF of Fractions calculations.
1. 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.
2. What is the GCF of Fractions for 399/99, 1572/630?
Answer: GCF of Numerators as per given numbers 399/99, 1572/630 is
GCF of Numerators i.e. for 399,1572 is 3
LCM of denominators i.e. for 99,630 is 6930.
Thus, GCF of Fractions is 3/6930.Finally, GCF of Fractions for 399/99, 1572/630 is 3/6930.