GCF of 120/789, 1690/128
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 120/789, 1690/128 i.e 10/100992 easily. The following is the detailed procedure to determine the greatest common factor of fractions 120/789, 1690/128.
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 120/789,1690/128?
Given fractions are 120/789,1690/128
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 120/789,1690/128, numerators are 120,1690
Denominators are 789,128
The GCF of 120,1690 is 10 .
LCM of 789,128 is 100992.
The greatest common factor of 120/789,1690/128 = [GCF of 120,1690]/[LCM of 789,128]= 10/100992
Therefore, the GCF of 120/789,1690/128 is 10/100992.
To find the highest common factor of 120,1690, we have to find the factors of both numbers and list the highest common factor.
The factors of 120 are 1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120
The factors of 1690 are 1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690
The HCF of 120,1690 is 10.
Lets's calculate GCF of 120,1690
| 2 | 120, 1690 |
| 5 | 60, 845 |
| 12, 169 |
∴ So the GCF of the given numbers is 2 x 5 = 10
Greatest Common Factor of 120,1690 By Matching Biggest Common Factor Method
Now, list down the factors of 120
:1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120
Now, list down the factors of 1690
:1,2,5,10,13,26,65,130,169,338,845,1690
Greatest Common Factor
We found the factors 120,1690 . The biggest common factor number is the GCF number.
So the greatest common factor 120,1690 is 10.
Lets's calculate LCM of 789,128
Given numbers has no common factors except 1. So, there LCM is their product i.e 100992
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 10/100992
Therefore, the GCF of Fractions 120/789,1690/128 is 10/100992
Least Common Multiple of 789,128 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 789,128 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(789,128) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(789,128) x common factors =1 x 1 = 1
LCM(789,128) = ( 789 × 128 ) / 1
LCM(789,128) = 100992 / 1
LCM(789,128) = 100992
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FAQs on GCF of Fractions of 120/789, 1690/128
1. What is the HCF of 120,1690?
The HCF of 120,1690 is 10
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 120/789, 1690/128?
Answer: GCF of Numerators as per given numbers 120/789, 1690/128 is
GCF of Numerators i.e. for 120,1690 is 10
LCM of denominators i.e. for 789,128 is 100992.
Thus, GCF of Fractions is 10/100992.Finally, GCF of Fractions for 120/789, 1690/128 is 10/100992.