2. Write the number as an improper fraction.
- 35.7142857144 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:
35.7142857144 = 35.7142857144/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 10,000,000,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
35.7142857144/1 =
(35.7142857144 × 10,000,000,000)/(1 × 10,000,000,000) =
357,142,857,144/10,000,000,000
3. Reduce (simplify) the fraction above:
357,142,857,144/10,000,000,000
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).
357,142,857,144 = 23 × 3 × 29 × 14,669 × 34,981
10,000,000,000 = 210 × 510
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (23 × 3 × 29 × 14,669 × 34,981; 210 × 510) = 23
Divide both the numerator and the denominator by their GCF.
357,142,857,144/10,000,000,000 =
(23 × 3 × 29 × 14,669 × 34,981)/(210 × 510) =
((23 × 3 × 29 × 14,669 × 34,981) ÷ 23) / ((210 × 510) ÷ 23) =
(3 × 29 × 14,669 × 34,981)/(27 × 510) =
44,642,857,143/1,250,000,000
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.
44,642,857,143 ÷ 1,250,000,000 = 35, remainder = 892,857,143 ⇒
44,642,857,143 = 35 × 1,250,000,000 + 892,857,143 ⇒
44,642,857,143/1,250,000,000 =
(35 × 1,250,000,000 + 892,857,143) / 1,250,000,000 =
(35 × 1,250,000,000) / 1,250,000,000 + 892,857,143/1,250,000,000 =
35 + 892,857,143/1,250,000,000 =
35 892,857,143/1,250,000,000