GCF of 63/47, 84/70, 320/42
Reviewed By : Phani Ponnapalli
Last Updated at : Mar 29,2023
Use our free GCF of Fractions Calculator tool to compute the GCF of 63/47, 84/70, 320/42 i.e 1/9870 easily. The following is the detailed procedure to determine the greatest common factor of fractions 63/47, 84/70, 320/42.
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 63/47,84/70,320/42?
Given fractions are 63/47,84/70,320/42
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 63/47,84/70,320/42, numerators are 63,84,320
Denominators are 47,70,42
The GCF of 63,84,320 is 1 .
LCM of 47,70,42 is 9870.
The greatest common factor of 63/47,84/70,320/42 = [GCF of 63,84,320]/[LCM of 47,70,42]= 1/9870
Therefore, the GCF of 63/47,84/70,320/42 is 1/9870.
To find the highest common factor of 63,84,320, we have to find the factors of both numbers and list the highest common factor.
The factors of 63 are 1, 3, 7, 9, 21, 63
The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
The factors of 320 are 1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320
The HCF of 63,84,320 is 1.
Lets's calculate GCF of 63,84,320
∴ So GCF of numbers is 1 because of no common factors present between them.
Greatest Common Factor of 63,84,320 By Matching Biggest Common Factor Method
Now, list down the factors of 63
:1,3,7,9,21,63
Now, list down the factors of 84
:1,2,3,4,6,7,12,14,21,28,42,84
Now, list down the factors of 320
:1,2,4,5,8,10,16,20,32,40,64,80,160,320
Greatest Common Factor
We found the factors 63,84,320 . The biggest common factor number is the GCF number.
So the greatest common factor 63,84,320 is 1.
Lets's calculate LCM of 47,70,42
| 2 | 47, 70, 42 |
| 7 | 47, 35, 21 |
| 47, 5, 3 |
∴ So the LCM of the given numbers is 2 x 7 x 47 x 5 x 3 = 9870
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 1/9870
Therefore, the GCF of Fractions 63/47,84/70,320/42 is 1/9870
Least Common Multiple of 47,70,42 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 47,70,42 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(47,70,42) = 1
common factors(in case of two or more numbers have common factors) = 14
GCF(47,70,42) x common factors =1 x 14 = 14
LCM(47,70,42) = ( 47 × 70 × 42 ) / 14
LCM(47,70,42) = 138180 / 14
LCM(47,70,42) = 9870
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FAQs on GCF of Fractions of 63/47, 84/70, 320/42
1. What is the HCF of 63,84,320?
The HCF of 63,84,320 is 1
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 63/47, 84/70, 320/42?
Answer: GCF of Numerators as per given numbers 63/47, 84/70, 320/42 is
GCF of Numerators i.e. for 63,84,320 is 1
LCM of denominators i.e. for 47,70,42 is 9870.
Thus, GCF of Fractions is 1/9870.Finally, GCF of Fractions for 63/47, 84/70, 320/42 is 1/9870.