Multiplying the common ordinary fractions: 360 × 4/9 = ? The multiplication process explained. The result written: As a positive integer number. As a positive improper fraction (the denominator = 1). As a percentage
360 × 4/9 = ?
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.
* Why do we try to reduce (simplify) the fractions?
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.
4/9 is already reduced to the lowest terms.
The numerator and denominator have no common prime factors.
Their prime factorization: 4 = 22 9 = 32
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.
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).
As a positive improper fraction: (the denominator = 1)
An improper fraction: the value of the numerator is larger than or equal to the value of the denominator.
160 = 160/1
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.
As a positive improper fraction: (the denominator = 1) 360 × 4/9 = 160/1
As a percentage: 360 × 4/9 = 16,000%
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.
The latest common ordinary fractions that have been multiplied
Above the fraction bar we write the product of all the prime factors of the fractions' numerators, without doing any calculations.
Below the fraction bar we write the product of all the prime factors of the fractions' denominators, without doing any calculations.
Cross out all the common prime factors that appear both above and below the fraction bar.
Multiply the remaining prime factors above the fraction bar - this will be the numerator of the resulted fraction.
Multiply the remaining prime factors below the fraction bar - this will be the denominator of the resulted fraction.
There is no need to reduce (simplify) the resulting fraction, since we have already crossed out all the common prime factors.
If the resulted fraction is an improper one (without considering the sign, the numerator is larger than the denominator), it could be written as a mixed number, consisting of an integer and a proper fraction of the same sign.