Use our free GCF of Fractions Calculator tool to compute the GCF of 7/45, 4/54, 7/72, 71/678 i.e 1/122040 easily. The following is the detailed procedure to determine the greatest common factor of fractions 7/45, 4/54, 7/72, 71/678.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 7/45,4/54,7/72,71/678
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 7/45,4/54,7/72,71/678, numerators are 7,4,7,71
Denominators are 45,54,72,678
The GCF of 7,4,7,71 is 1 .
LCM of 45,54,72,678 is 122040.
The greatest common factor of 7/45,4/54,7/72,71/678 = [GCF of 7,4,7,71]/[LCM of 45,54,72,678]= 1/122040
Therefore, the GCF of 7/45,4/54,7/72,71/678 is 1/122040.
To find the highest common factor of 7,4,7,71, we have to find the factors of both numbers and list the highest common factor.
The factors of 7 are 1, 7
The factors of 4 are 1, 2, 4
The factors of 7 are 1, 7
The factors of 71 are 1, 71
The HCF of 7,4,7,71 is 1.
Lets's calculate GCF of 7,4,7,71
∴ So GCF of numbers is 1 because of no common factors present between them.
Now, list down the factors of 7
:1,7
Now, list down the factors of 4
:1,2,4
Now, list down the factors of 7
:1,7
Now, list down the factors of 71
:1,71
Greatest Common Factor
We found the factors 7,4,7,71 . The biggest common factor number is the GCF number.
So the greatest common factor 7,4,7,71 is 1.
Lets's calculate LCM of 45,54,72,678
2 | 45, 54, 72, 678 |
3 | 45, 27, 36, 339 |
3 | 15, 9, 12, 113 |
5, 3, 4, 113 |
∴ So the LCM of the given numbers is 2 x 3 x 3 x 5 x 3 x 4 x 113 = 122040
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/122040
Therefore, the GCF of Fractions 7/45,4/54,7/72,71/678 is 1/122040
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 45,54,72,678 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(45,54,72,678) = 3
common factors(in case of two or more numbers have common factors) = 324
GCF(45,54,72,678) x common factors =3 x 324 = 972
LCM(45,54,72,678) = ( 45 × 54 × 72 × 678 ) / 972
LCM(45,54,72,678) = 118622880 / 972
LCM(45,54,72,678) = 122040
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 7,4,7,71?
The HCF of 7,4,7,71 is 1
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 7/45, 4/54, 7/72, 71/678?
Answer: GCF of Numerators as per given numbers 7/45, 4/54, 7/72, 71/678 is
GCF of Numerators i.e. for 7,4,7,71 is 1
LCM of denominators i.e. for 45,54,72,678 is 122040.
Thus, GCF of Fractions is 1/122040.Finally, GCF of Fractions for 7/45, 4/54, 7/72, 71/678 is 1/122040.