Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 31/52,85/80,42/52,70/158
Formula to find GCF of Fractions is
GCF = GCF of Numerators/LCM of Denominators
As per the formula GCF of Fractions let’s split into two parts and find the GCF of Numerators and LCM of Denominators
In the given fractions GCF of Numerators means GCF of 31,85,42,70
Greatest Common Factor of Numerators i.e. GCF of 31,85,42,70 is 1 .
LCM of Denominators means LCM of 52,80,52,158 as per the given fractions.
LCM of 52,80,52,158 is 82160 as it is the smallest common factor for both these numbers.
Lets's calculate GCF of 31,85,42,70
∴ So GCF of numbers is 1 because of no common factors present between them.
Factors of 31
List of positive integer factors of 31 that divides 31 without a remainder.
1,31
Factors of 85
List of positive integer factors of 85 that divides 85 without a remainder.
1,5,17,85
Factors of 42
List of positive integer factors of 42 that divides 42 without a remainder.
1,2,3,6,7,14,21,42
Factors of 70
List of positive integer factors of 70 that divides 70 without a remainder.
1,2,5,7,10,14,35,70
Greatest Common Factor
We found the factors 31,85,42,70 . The biggest common factor number is the GCF number.
So the greatest common factor 31,85,42,70 is 1.
Lets's calculate LCM of 52,80,52,158
2 | 52, 80, 52, 158 |
2 | 26, 40, 26, 79 |
13 | 13, 20, 13, 79 |
1, 20, 1, 79 |
∴ So the LCM of the given numbers is 2 x 2 x 13 x 1 x 20 x 1 x 79 = 82160
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/82160
Therefore, the GCF of Fractions 31/52,85/80,42/52,70/158 is 1/82160
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 52,80,52,158 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(52,80,52,158) = 2
common factors(in case of two or more numbers have common factors) = 208
GCF(52,80,52,158) x common factors =2 x 208 = 416
LCM(52,80,52,158) = ( 52 × 80 × 52 × 158 ) / 416
LCM(52,80,52,158) = 34178560 / 416
LCM(52,80,52,158) = 82160
Here are some samples of GCF of Fractions calculations.
Here are some samples of GCF of Fractions calculations.
1. 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.
2. What is the GCF of Fractions for 31/52, 85/80, 42/52, 70/158?
Answer: GCF of Numerators as per given numbers 31/52, 85/80, 42/52, 70/158 is
GCF of Numerators i.e. for 31,85,42,70 is 1
LCM of denominators i.e. for 52,80,52,158 is 82160.
Thus, GCF of Fractions is 1/82160.Finally, GCF of Fractions for 31/52, 85/80, 42/52, 70/158 is 1/82160.