GCF of 30/70, 870/47, 842/247
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 30/70, 870/47, 842/247 i.e 2/812630 easily. The following is the detailed procedure to determine the greatest common factor of fractions 30/70, 870/47, 842/247.
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 30/70,870/47,842/247?
Given fractions are 30/70,870/47,842/247
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 30/70,870/47,842/247, numerators are 30,870,842
Denominators are 70,47,247
The GCF of 30,870,842 is 2 .
LCM of 70,47,247 is 812630.
The greatest common factor of 30/70,870/47,842/247 = [GCF of 30,870,842]/[LCM of 70,47,247]= 2/812630
Therefore, the GCF of 30/70,870/47,842/247 is 2/812630.
To find the highest common factor of 30,870,842, we have to find the factors of both numbers and list the highest common factor.
The factors of 30 are 1, 2, 3, 5, 6, 10, 15, 30
The factors of 870 are 1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 870
The factors of 842 are 1, 2, 421, 842
The HCF of 30,870,842 is 2.
Lets's calculate GCF of 30,870,842
| 2 | 30, 870, 842 |
| 15, 435, 421 |
∴ So the GCF of the given numbers is 2 = 2
Greatest Common Factor of 30,870,842 By Matching Biggest Common Factor Method
Now, list down the factors of 30
:1,2,3,5,6,10,15,30
Now, list down the factors of 870
:1,2,3,5,6,10,15,29,30,58,87,145,174,290,435,870
Now, list down the factors of 842
:1,2,421,842
Greatest Common Factor
We found the factors 30,870,842 . The biggest common factor number is the GCF number.
So the greatest common factor 30,870,842 is 2.
Lets's calculate LCM of 70,47,247
Given numbers has no common factors except 1. So, there LCM is their product i.e 812630
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 2/812630
Therefore, the GCF of Fractions 30/70,870/47,842/247 is 2/812630
Least Common Multiple of 70,47,247 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 70,47,247 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(70,47,247) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(70,47,247) x common factors =1 x 1 = 1
LCM(70,47,247) = ( 70 × 47 × 247 ) / 1
LCM(70,47,247) = 812630 / 1
LCM(70,47,247) = 812630
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FAQs on GCF of Fractions of 30/70, 870/47, 842/247
1. What is the HCF of 30,870,842?
The HCF of 30,870,842 is 2
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 30/70, 870/47, 842/247?
Answer: GCF of Numerators as per given numbers 30/70, 870/47, 842/247 is
GCF of Numerators i.e. for 30,870,842 is 2
LCM of denominators i.e. for 70,47,247 is 812630.
Thus, GCF of Fractions is 2/812630.Finally, GCF of Fractions for 30/70, 870/47, 842/247 is 2/812630.