GCF of 50/78, 45/99, 70/21, 90/696
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 50/78, 45/99, 70/21, 90/696 i.e 5/2090088 easily. The following is the detailed procedure to determine the greatest common factor of fractions 50/78, 45/99, 70/21, 90/696.
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 50/78,45/99,70/21,90/696?
Given fractions are 50/78,45/99,70/21,90/696
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 50/78,45/99,70/21,90/696, numerators are 50,45,70,90
Denominators are 78,99,21,696
The GCF of 50,45,70,90 is 5 .
LCM of 78,99,21,696 is 2090088.
The greatest common factor of 50/78,45/99,70/21,90/696 = [GCF of 50,45,70,90]/[LCM of 78,99,21,696]= 5/2090088
Therefore, the GCF of 50/78,45/99,70/21,90/696 is 5/2090088.
To find the highest common factor of 50,45,70,90, we have to find the factors of both numbers and list the highest common factor.
The factors of 50 are 1, 2, 5, 10, 25, 50
The factors of 45 are 1, 3, 5, 9, 15, 45
The factors of 70 are 1, 2, 5, 7, 10, 14, 35, 70
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
The HCF of 50,45,70,90 is 5.
Lets's calculate GCF of 50,45,70,90
| 5 | 50, 45, 70, 90 |
| 10, 9, 14, 18 |
∴ So the GCF of the given numbers is 5 = 5
Greatest Common Factor of 50,45,70,90 By Matching Biggest Common Factor Method
Now, list down the factors of 50
:1,2,5,10,25,50
Now, list down the factors of 45
:1,3,5,9,15,45
Now, list down the factors of 70
:1,2,5,7,10,14,35,70
Now, list down the factors of 90
:1,2,3,5,6,9,10,15,18,30,45,90
Greatest Common Factor
We found the factors 50,45,70,90 . The biggest common factor number is the GCF number.
So the greatest common factor 50,45,70,90 is 5.
Lets's calculate LCM of 78,99,21,696
| 2 | 78, 99, 21, 696 |
| 3 | 39, 99, 21, 348 |
| 13, 33, 7, 116 |
∴ So the LCM of the given numbers is 2 x 3 x 13 x 33 x 7 x 116 = 2090088
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 5/2090088
Therefore, the GCF of Fractions 50/78,45/99,70/21,90/696 is 5/2090088
Least Common Multiple of 78,99,21,696 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 78,99,21,696 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(78,99,21,696) = 3
common factors(in case of two or more numbers have common factors) = 18
GCF(78,99,21,696) x common factors =3 x 18 = 54
LCM(78,99,21,696) = ( 78 × 99 × 21 × 696 ) / 54
LCM(78,99,21,696) = 112864752 / 54
LCM(78,99,21,696) = 2090088
GCF of Fractions Calculation Examples
Here are some samples of GCF of Fractions calculations.
FAQs on GCF of Fractions of 50/78, 45/99, 70/21, 90/696
1. What is the HCF of 50,45,70,90?
The HCF of 50,45,70,90 is 5
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 50/78, 45/99, 70/21, 90/696?
Answer: GCF of Numerators as per given numbers 50/78, 45/99, 70/21, 90/696 is
GCF of Numerators i.e. for 50,45,70,90 is 5
LCM of denominators i.e. for 78,99,21,696 is 2090088.
Thus, GCF of Fractions is 5/2090088.Finally, GCF of Fractions for 50/78, 45/99, 70/21, 90/696 is 5/2090088.