2. Write the number as an improper fraction.
- 1.33333335 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:
1.33333335 = 1.33333335/1
Turn the top number into a whole number.
- Multiply both the top and the bottom by the same number.
- This number is: 100,000,000.
- 1 followed by as many 0-s as the number of digits after the decimal point.
1.33333335/1 =
(1.33333335 × 100,000,000)/(1 × 100,000,000) =
133,333,335/100,000,000
3. Reduce (simplify) the fraction above:
133,333,335/100,000,000
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).
133,333,335 = 32 × 5 × 2,962,963
100,000,000 = 28 × 58
Calculate the greatest (highest) common factor (divisor), GCF.
Multiply all the common prime factors by the lowest exponents.
GCF (32 × 5 × 2,962,963; 28 × 58) = 5
Divide both the numerator and the denominator by their GCF.
133,333,335/100,000,000 =
(32 × 5 × 2,962,963)/(28 × 58) =
((32 × 5 × 2,962,963) ÷ 5) / ((28 × 58) ÷ 5) =
(32 × 2,962,963)/(28 × 57) =
26,666,667/20,000,000
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.
26,666,667 ÷ 20,000,000 = 1, remainder = 6,666,667 ⇒
26,666,667 = 1 × 20,000,000 + 6,666,667 ⇒
26,666,667/20,000,000 =
(1 × 20,000,000 + 6,666,667) / 20,000,000 =
(1 × 20,000,000) / 20,000,000 + 6,666,667/20,000,000 =
1 + 6,666,667/20,000,000 =
1 6,666,667/20,000,000