GCF of 455/991, 1235/830
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 455/991, 1235/830 i.e 65/822530 easily. The following is the detailed procedure to determine the greatest common factor of fractions 455/991, 1235/830.
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 455/991,1235/830?
Given fractions are 455/991,1235/830
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 455/991,1235/830, numerators are 455,1235
Denominators are 991,830
The GCF of 455,1235 is 65 .
LCM of 991,830 is 822530.
The greatest common factor of 455/991,1235/830 = [GCF of 455,1235]/[LCM of 991,830]= 65/822530
Therefore, the GCF of 455/991,1235/830 is 65/822530.
To find the highest common factor of 455,1235, we have to find the factors of both numbers and list the highest common factor.
The factors of 455 are 1, 5, 7, 13, 35, 65, 91, 455
The factors of 1235 are 1, 5, 13, 19, 65, 95, 247, 1235
The HCF of 455,1235 is 65.
Lets's calculate GCF of 455,1235
| 5 | 455, 1235 |
| 13 | 91, 247 |
| 7, 19 |
∴ So the GCF of the given numbers is 5 x 13 = 65
Greatest Common Factor of 455,1235 By Matching Biggest Common Factor Method
Now, list down the factors of 455
:1,5,7,13,35,65,91,455
Now, list down the factors of 1235
:1,5,13,19,65,95,247,1235
Greatest Common Factor
We found the factors 455,1235 . The biggest common factor number is the GCF number.
So the greatest common factor 455,1235 is 65.
Lets's calculate LCM of 991,830
Given numbers has no common factors except 1. So, there LCM is their product i.e 822530
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 65/822530
Therefore, the GCF of Fractions 455/991,1235/830 is 65/822530
Least Common Multiple of 991,830 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 991,830 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(991,830) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(991,830) x common factors =1 x 1 = 1
LCM(991,830) = ( 991 × 830 ) / 1
LCM(991,830) = 822530 / 1
LCM(991,830) = 822530
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FAQs on GCF of Fractions of 455/991, 1235/830
1. What is the HCF of 455,1235?
The HCF of 455,1235 is 65
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 455/991, 1235/830?
Answer: GCF of Numerators as per given numbers 455/991, 1235/830 is
GCF of Numerators i.e. for 455,1235 is 65
LCM of denominators i.e. for 991,830 is 822530.
Thus, GCF of Fractions is 65/822530.Finally, GCF of Fractions for 455/991, 1235/830 is 65/822530.