2. Write the number as an improper fraction.
- 2.533333333336 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:
2.533333333336 = 2.533333333336/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 1,000,000,000,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
2.533333333336/1 =
(2.533333333336 × 1,000,000,000,000)/(1 × 1,000,000,000,000) =
2,533,333,333,336/1,000,000,000,000
3. Reduce (simplify) the fraction above:
2,533,333,333,336/1,000,000,000,000
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).
2,533,333,333,336 = 23 × 13 × 97 × 251,123,447
1,000,000,000,000 = 212 × 512
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (23 × 13 × 97 × 251,123,447; 212 × 512) = 23
Divide both the numerator and the denominator by their GCF.
2,533,333,333,336/1,000,000,000,000 =
(23 × 13 × 97 × 251,123,447)/(212 × 512) =
((23 × 13 × 97 × 251,123,447) ÷ 23) / ((212 × 512) ÷ 23) =
(13 × 97 × 251,123,447)/(29 × 512) =
316,666,666,667/125,000,000,000
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.
316,666,666,667 ÷ 125,000,000,000 = 2, remainder = 66,666,666,667 ⇒
316,666,666,667 = 2 × 125,000,000,000 + 66,666,666,667 ⇒
316,666,666,667/125,000,000,000 =
(2 × 125,000,000,000 + 66,666,666,667) / 125,000,000,000 =
(2 × 125,000,000,000) / 125,000,000,000 + 66,666,666,667/125,000,000,000 =
2 + 66,666,666,667/125,000,000,000 =
2 66,666,666,667/125,000,000,000