2. Write the number as an improper fraction.
- 5.571428576 can be written as an improper fraction.
- An improper fraction = the numerator is larger than or equal to the denominator..
Write down the number divided by 1, as a fraction:
5.571428576 = 5.571428576/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 1,000,000,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
5.571428576/1 =
(5.571428576 × 1,000,000,000)/(1 × 1,000,000,000) =
5,571,428,576/1,000,000,000
3. Reduce (simplify) the fraction above:
5,571,428,576/1,000,000,000
to the lowest terms, to its simplest equivalent form, irreducible.
To reduce a fraction to the lowest terms divide the numerator and denominator by their greatest (highest) common factor (divisor), GCF.
Factor the numerator and denominator (prime factorization).
5,571,428,576 = 25 × 73 × 97 × 5,233
1,000,000,000 = 29 × 59
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (25 × 73 × 97 × 5,233; 29 × 59) = 25
Divide both the numerator and the denominator by their GCF.
5,571,428,576/1,000,000,000 =
(25 × 73 × 97 × 5,233)/(29 × 59) =
((25 × 73 × 97 × 5,233) ÷ 25) / ((29 × 59) ÷ 25) =
(73 × 97 × 5,233)/(24 × 59) =
174,107,143/31,250,000
4. The fraction is an improper one, rewrite it as a mixed number (mixed fraction):
- A mixed number = an integer number and a proper fraction, of the same sign.
- Example 1: 2 1/5; Example 2: - 1 3/7.
- A proper fraction = the numerator is smaller than the denominator.
174,107,143 ÷ 31,250,000 = 5, remainder = 17,857,143 ⇒
174,107,143 = 5 × 31,250,000 + 17,857,143 ⇒
174,107,143/31,250,000 =
(5 × 31,250,000 + 17,857,143) / 31,250,000 =
(5 × 31,250,000) / 31,250,000 + 17,857,143/31,250,000 =
5 + 17,857,143/31,250,000 =
5 17,857,143/31,250,000