2. Write the number as an improper fraction.
- 1.333333333334 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:
1.333333333334 = 1.333333333334/1
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.
1.333333333334/1 =
(1.333333333334 × 1,000,000,000,000)/(1 × 1,000,000,000,000) =
1,333,333,333,334/1,000,000,000,000
3. Reduce (simplify) the fraction above:
1,333,333,333,334/1,000,000,000,000
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).
1,333,333,333,334 = 2 × 43 × 2,347 × 6,605,827
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 (2 × 43 × 2,347 × 6,605,827; 212 × 512) = 2
Divide both the numerator and the denominator by their GCF.
1,333,333,333,334/1,000,000,000,000 =
(2 × 43 × 2,347 × 6,605,827)/(212 × 512) =
((2 × 43 × 2,347 × 6,605,827) ÷ 2) / ((212 × 512) ÷ 2) =
(43 × 2,347 × 6,605,827)/(211 × 512) =
666,666,666,667/500,000,000,000
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.
666,666,666,667 ÷ 500,000,000,000 = 1, remainder = 166,666,666,667 ⇒
666,666,666,667 = 1 × 500,000,000,000 + 166,666,666,667 ⇒
666,666,666,667/500,000,000,000 =
(1 × 500,000,000,000 + 166,666,666,667) / 500,000,000,000 =
(1 × 500,000,000,000) / 500,000,000,000 + 166,666,666,667/500,000,000,000 =
1 + 166,666,666,667/500,000,000,000 =
1 166,666,666,667/500,000,000,000