Use our free GCF of Fractions Calculator tool to compute the GCF of 688/805, 704/981 i.e 16/789705 easily. The following is the detailed procedure to determine the greatest common factor of fractions 688/805, 704/981.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 688/805,704/981
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 688/805,704/981, numerators are 688,704
Denominators are 805,981
The GCF of 688,704 is 16 .
LCM of 805,981 is 789705.
The greatest common factor of 688/805,704/981 = [GCF of 688,704]/[LCM of 805,981]= 16/789705
Therefore, the GCF of 688/805,704/981 is 16/789705.
To find the highest common factor of 688,704, we have to find the factors of both numbers and list the highest common factor.
The factors of 688 are 1, 2, 4, 8, 16, 43, 86, 172, 344, 688
The factors of 704 are 1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 176, 352, 704
The HCF of 688,704 is 16.
Lets's calculate GCF of 688,704
2 | 688, 704 |
2 | 344, 352 |
2 | 172, 176 |
2 | 86, 88 |
43, 44 |
∴ So the GCF of the given numbers is 2 x 2 x 2 x 2 = 16
Now, list down the factors of 688
:1,2,4,8,16,43,86,172,344,688
Now, list down the factors of 704
:1,2,4,8,11,16,22,32,44,64,88,176,352,704
Greatest Common Factor
We found the factors 688,704 . The biggest common factor number is the GCF number.
So the greatest common factor 688,704 is 16.
Lets's calculate LCM of 805,981
Given numbers has no common factors except 1. So, there LCM is their product i.e 789705
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 16/789705
Therefore, the GCF of Fractions 688/805,704/981 is 16/789705
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 805,981 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(805,981) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(805,981) x common factors =1 x 1 = 1
LCM(805,981) = ( 805 × 981 ) / 1
LCM(805,981) = 789705 / 1
LCM(805,981) = 789705
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 688,704?
The HCF of 688,704 is 16
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 688/805, 704/981?
Answer: GCF of Numerators as per given numbers 688/805, 704/981 is
GCF of Numerators i.e. for 688,704 is 16
LCM of denominators i.e. for 805,981 is 789705.
Thus, GCF of Fractions is 16/789705.Finally, GCF of Fractions for 688/805, 704/981 is 16/789705.