Multiplying the common ordinary fractions: - 27/124 × 17/774 = ? The multiplication process explained. The result written: As a negative proper fraction (the numerator < the denominator). As a decimal number. As a percentage
- 27/124 × 17/774 = ?
Simplify the operation
Reduce (simplify) the fractions to their lowest terms equivalents:
To fully reduce a fraction, to the lowest terms equivalent: divide the numerator and denominator by their greatest common factor, GCF.
* By reducing the values of the numerators and the denominators of the fractions the calculations are easier to make.
A fully reduced (simplified) fraction is one with the smallest possible numerator and denominator, one that can no longer be reduced, and it is called an irreducible fraction.
* In order to easily reduce a fraction, factor its numerator and denominator. This way all the common prime factors are easily identified and crossed out, without calculating the GCF.
27/124 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors.
Their prime factorization:
27 = 33
124 = 22 × 31
17/774 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors.
Their prime factorization:
17 is a prime number (it cannot be factored into other prime factors)
774 = 2 × 32 × 43
Perform the operation of calculating the fractions
Multiply the fractions:
1) Multiply the numerators, that is, all the numbers above the fractions bars, separately.
2) Multiply the denominators, that is, all the numbers below the fractions bars, separately.
* Factor all the numerators and all the denominators in order to easily reduce (simplify) the end fraction.
- 27/124 × 17/774 =
- (27 × 17) / (124 × 774) =
- (33 × 17) / (22 × 31 × 2 × 32 × 43) =
- (33 × 17) / (23 × 32 × 31 × 43)
Fully reduce (simplify) the end fraction to its lowest terms equivalent:
Calculate the greatest common factor, GCF,
of the numerator and denominator of the fraction:
A fully reduced (simplified) fraction is one with the smallest possible numerator and denominator, one that can no longer be reduced, and it is called an irreducible fraction.
To fully reduce a fraction, to the lowest terms equivalent: divide the numerator and denominator by their greatest common factor, GCF.
* To calculate the GCF, we need to factor the numerator and the denominator of the fraction into prime factors.
Then multiply all the common prime factors: if there are repeating prime factors we only take them once, and only the ones having the lowest exponent (the lowest powers).
GCF (33 × 17; 23 × 32 × 31 × 43) = 32
Divide the numerator and the denominator by their GCF:
- (33 × 17) / (23 × 32 × 31 × 43) =
- ((33 × 17) ÷ 32) / ((23 × 32 × 31 × 43) ÷ 32) =
- (33 ÷ 32 × 17)/(23 × 32 ÷ 32 × 31 × 43) =
- (3(3 - 2) × 17)/(23 × 3(2 - 2) × 31 × 43) =
- (31 × 17)/(23 × 30 × 31 × 43) =
- (3 × 17)/(23 × 1 × 31 × 43) =
- (3 × 17)/(23 × 31 × 43) =
- (3 × 17)/(8 × 31 × 43) =
- 51/10,664
Rewrite the fraction
As a decimal number:
Simply divide the numerator by the denominator, without a remainder, as shown below:
- 51/10,664 =
- 51 ÷ 10,664 ≈
- 0.004782445611 ≈
0
As a percentage:
A percentage value p% is equal to the fraction: p/100, for any decimal number p. So, we need to change the form of the number calculated above, to show a denominator of 100.
To do that, multiply the number by the fraction 100/100.
The value of the fraction 100/100 = 1, so by multiplying the number by this fraction the result is not changing, only the form.
- 0.004782445611 =
- 0.004782445611 × 100/100 =
( - 0.004782445611 × 100)/100 =
- 0.47824456114/100 ≈
- 0.47824456114% ≈
- 0.48%
The final answer:
written in three ways
As a negative proper fraction:
(the numerator < the denominator)
- 27/124 × 17/774 = - 51/10,664
As a decimal number:
- 27/124 × 17/774 ≈ 0
As a percentage:
- 27/124 × 17/774 ≈ - 0.48%
How are the numbers being written on our website: comma ',' is used as a thousands separator; point '.' used as a decimal separator; numbers rounded off to max. 12 decimals (if the case). The set of the used symbols on our website: '/' the fraction bar; ÷ dividing; × multiplying; + plus (adding); - minus (subtracting); = equal; ≈ approximately equal.
Other similar operations
Multiply common ordinary fractions, online calculator: