GCF of 75/64, 12/80, 17/45, 63/78
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 75/64, 12/80, 17/45, 63/78 i.e 1/37440 easily. The following is the detailed procedure to determine the greatest common factor of fractions 75/64, 12/80, 17/45, 63/78.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
What is the GCF of 75/64,12/80,17/45,63/78?
Given fractions are 75/64,12/80,17/45,63/78
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 75/64,12/80,17/45,63/78, numerators are 75,12,17,63
Denominators are 64,80,45,78
The GCF of 75,12,17,63 is 1 .
LCM of 64,80,45,78 is 37440.
The greatest common factor of 75/64,12/80,17/45,63/78 = [GCF of 75,12,17,63]/[LCM of 64,80,45,78]= 1/37440
Therefore, the GCF of 75/64,12/80,17/45,63/78 is 1/37440.
To find the highest common factor of 75,12,17,63, we have to find the factors of both numbers and list the highest common factor.
The factors of 75 are 1, 3, 5, 15, 25, 75
The factors of 12 are 1, 2, 3, 4, 6, 12
The factors of 17 are 1, 17
The factors of 63 are 1, 3, 7, 9, 21, 63
The HCF of 75,12,17,63 is 1.
Lets's calculate GCF of 75,12,17,63
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 75,12,17,63 By Matching Biggest Common Factor Method
Now, list down the factors of 75
:1,3,5,15,25,75
Now, list down the factors of 12
:1,2,3,4,6,12
Now, list down the factors of 17
:1,17
Now, list down the factors of 63
:1,3,7,9,21,63
Greatest Common Factor
We found the factors 75,12,17,63 . The biggest common factor number is the GCF number.
So the greatest common factor 75,12,17,63 is 1.
Lets's calculate LCM of 64,80,45,78
| 2 | 64, 80, 45, 78 |
| 2 | 32, 40, 45, 39 |
| 2 | 16, 20, 45, 39 |
| 2 | 8, 10, 45, 39 |
| 3 | 4, 5, 45, 39 |
| 5 | 4, 5, 15, 13 |
| 4, 1, 3, 13 |
∴ So the LCM of the given numbers is 2 x 2 x 2 x 2 x 3 x 5 x 4 x 1 x 3 x 13 = 37440
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/37440
Therefore, the GCF of Fractions 75/64,12/80,17/45,63/78 is 1/37440
Least Common Multiple of 64,80,45,78 with GCF Formula
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 64,80,45,78 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(64,80,45,78) = 1
common factors(in case of two or more numbers have common factors) = 480
GCF(64,80,45,78) x common factors =1 x 480 = 480
LCM(64,80,45,78) = ( 64 × 80 × 45 × 78 ) / 480
LCM(64,80,45,78) = 17971200 / 480
LCM(64,80,45,78) = 37440
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 75/64, 12/80, 17/45, 63/78
1. What is the HCF of 75,12,17,63?
The HCF of 75,12,17,63 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 75/64, 12/80, 17/45, 63/78?
Answer: GCF of Numerators as per given numbers 75/64, 12/80, 17/45, 63/78 is
GCF of Numerators i.e. for 75,12,17,63 is 1
LCM of denominators i.e. for 64,80,45,78 is 37440.
Thus, GCF of Fractions is 1/37440.Finally, GCF of Fractions for 75/64, 12/80, 17/45, 63/78 is 1/37440.